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January 8, 2009
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 Pap Smear Main Article |  Glossary |  Pap Smear Index 

Pap Smear Glossary of Terms

The following are health and medical definitions of terms that appear in the Pap Smear article.

Abdomen: The belly , that part of the body that contains all of the structures between the chest and the pelvis . The abdomen is separated anatomically from the chest by the diaphragm , the powerful muscle spanning the body cavity below the lungs .
See the entire definition of Abdomen

Abnormal: Not normal. Deviating from the usual structure, position, condition, or behavior. In referring to a growth, abnormal may mean that it is cancerous or premalignant (likely to become cancer ).
See the entire definition of Abnormal

Acetic acid: The acid most commonly associated with vinegar. Acetic acid is a two-carbon carboxylic acid. Its formula is: CH3COOH. It is the most commercially important organic acid and is used in the manufacture of a broad range of chemical products, such as plastics and insecticides.

Adenocarcinoma: A cancer that develops in the lining or inner surface of an organ. More than 95 percent of prostate cancers are adenocarcinoma.
See the entire definition of Adenocarcinoma

Analysis: A psychology term for processes used to gain understanding of complex emotional or behavioral issues.
See the entire definition of Analysis

Anesthesia: Loss of feeling or awareness. A general anesthetic puts the person to sleep. A local anesthetic causes loss of feeling in a part of the body such as a tooth or an area of skin without affecting consciousness. Regional anesthesia numbs a larger part of the body such as a leg or arm, also without affecting consciousness. The term "conduction anesthesia" encompasses both local and regional anesthetic techniques. Many surgical procedures can be done with conduction anesthesia without significant pain. In many situations, such as a C-section, conduction anesthesia is safer and therefore preferable to general anesthesia. However, there are also many types of surgery in which general anesthesia is clearly appropriate.

Ascus: An elongated spore case containing the spores of certain fungi including yeast.

ASCUS: An acronym for Atypical Squamous Cells of Undetermined Significance. This term is used in the Bethesda System for reporting Pap smear findings and indicates that some flat (squamous) cells look unusual and may or may not be pre-malignant or malignant. Of all Pap tests with an ASCUS reading, 90-95% are caused by benign conditions, chiefly infections. The remaining 5-10% prove to be precancer or cancer.

Atrophic vaginitis: Thinning of the lining (the endothelium) of the vagina due to decreased production of estrogen. This may occur with menopause. Vaginitis means inflammation of the vagina, the muscular canal extending from the cervix to the outside of the body. Aside from atrophic vaginitis, there are a number of other types of vaginitis. Vaginitis may, for example, be caused by a fungal infection leading to itching or burning and a discharge.

Atypical: Not typical, not usual, not normal, abnormal. Atypical is often used to refer to the appearance of precancerous or cancerous cells.

Belly: That part of the body that contains all of the structures between the chest and the pelvis. Also called the abdomen.
See the entire definition of Belly

Benign: Not cancer. Not malignant . A benign tumor does not invade surrounding tissue or spread to other parts of the body. A benign tumor may grow but it stays put (in the same place).
See the entire definition of Benign

Biopsy: The removal of a sample of tissue for purposes of diagnosis. (Many definitions of "biopsy" stipulate that the sample of tissue is removed for examination under a microscope. This may or may not be the case. The diagnosis may be achieved by other means such as by analysis of chromosomes or genes.)
See the entire definition of Biopsy

Boil: A skin abscess , a collection of pus localized deep in the skin. A boil usually starts as a reddened, tender area and in time becomes firm and hard. Eventually, the center of the abscess softens and becomes filled with white blood cells that the body sends to fight the infection. This collection of white cells is the pus.
See the entire definition of Boil

Cancer: An abnormal growth of cells which tend to proliferate in an uncontrolled way and, in some cases, to metastasize (spread).
See the entire definition of Cancer back to top

Cancer of the cervix: See: Cervical cancer.

Carbon dioxide: A gas which is the byproduct of cellular metabolism and which collects in the tissues, is cleared from the tissues by the blood within the veins, is carried by the hemoglobin in the red blood cells, and removed from the body via the lungs in the exhaled air. Abbreviated CO2.

Carcinoma: Cancer that begins in the skin or in tissues that line or cover body organs. For example, carcinoma can arise in the breast , colon, liver, lung, prostate, and stomach.
See the entire definition of Carcinoma

Carcinoma in situ: Cancer that involves only the place in which it began and that has not spread. Carcinoma in situ is an early-stage tumor.
See the entire definition of Carcinoma in situ

Causes of cancer: Cancer is a group of more than 100 different diseases. Benign tumors are not cancer; malignant tumors are cancer. Most cancers are named for the type of cell or the organ in which they begin. When cancer spreads (metastasizes), the new tumor has the same name as the original (primary) tumor. Skin cancer is the most common type of cancer for both men and women. The second most common cancer in men is prostate cancer, in women it is breast cancer. Lung cancer is the leading cause of death from cancer for both men and women in the U.S. Cancer is NOT contagious.

Cell: The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane .
See the entire definition of Cell

Cervical: Having to do with any kind of neck including the neck on which the head is perched and the neck of the uterus. The word "cervix" in Latin means "neck". That is why cervical vertebrae and cervical cancer involve quite disparate parts of the anatomy joined only by the meaning of the word "cervix".
See the entire definition of Cervical

Cervical cancer: Cancer of the entrance to the womb (uterus). The cervix is the lower, narrow part of the uterus (womb). The uterus, a hollow, pear-shaped organ, is located in a woman's lower abdomen, between the bladder and the rectum. The cervix forms a canal that opens into the vagina, which leads to the outside of the body.

Regular pelvic exams and Pap testing can detect precancerous changes in the cervix. Precancerous changes in the cervix may be treated with cryosurgery, cauterization, or laser surgery. The most common symptom of cancer of the cervix is abnormal bleeding. Cancer of the cervix can be diagnosed using a Pap test or other procedures that sample the cervix tissue. Cancer of the cervix requires different treatment than cancer that begins in other parts of the uterus.
See the entire definition of Cervical cancer

Cervical intraepithelial neoplasia: A general term for the growth of abnormal cells on the surface of the cervix. Numbers from 1 to 3 may be used to describe how much of the cervix contains abnormal cells. Also called CIN.

Cervix: The cervix is the lower, narrow part of the uterus (womb). The uterus, a hollow, pear-shaped organ, is located in a woman's lower abdomen, between the bladder and the rectum. The cervix forms a canal that opens into the vagina, which leads to the outside of the body.


See the entire definition of Cervix

Chromosomes: The microscopically visible carriers of the genetic material. They are composed of deoxyribonucleic acid (DNA) and proteins and, under a microscope, look like little rods.
See the entire definition of Chromosomes

Colposcope: A lighted magnifying instrument used by a gynecologist to examine the tissues of the vagina and the cervix. The procedure is called colposcopy .
See the entire definition of Colposcope

Colposcopy : A procedure in which a gynecologist uses a lighted magnifying instrument which is called a colposcope to examine the tissues of the vagina and the cervix.
See the entire definition of Colposcopy

Conization: Surgery to remove a cone-shaped piece of tissue from the cervix and cervical canal. Conization may be used to diagnose or treat a cervical condition. Also called cone biopsy.

Contraindication: A condition which makes a particular treatment or procedure inadvisable. A contraindication may be absolute or relative.

  • An absolute contraindication is a situation which makes a particular treatment or procedure absolutely inadvisable. In a baby, for example, aspirin is absolutely contraindicated because of the danger that aspirin will cause Reye syndrome .
  • A relative contraindication is a condition which makes a particular treatment or procedure somewhat inadvisable but does not rule it out. For example, X-rays in pregnancy are relatively contraindicated (because of concern for the developing fetus ) unless the X-rays are absolutely necessary.

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Contrast: Short for "contrast media." Contrast media are X-ray dyes used to provide contrast, for example, between blood vessels and other tissue.

Cryoprobe: A surgical probe, a long slender pointed surgical instrument, used to apply extreme cold to tissues. From cryo- from the Greek kryos meaning cold + probe.

Curable: Amenable to a cure, capable of being cured, to being healed and made well. Most skin cancers, fortunately, are curable. From the word cure, from the Latin cura meaning care, concern or attention.

Cure: 1. To heal, to make well, to restore to good health. Cures are easy to claim and, all too often, difficult to confirm.
2. A time without recurrence of a disease so that the risk of recurrence is small, as in the 5-year cure rate for malignant melanoma .
3. Particularly in the past, a course of treatment. For example, take a cure at a spa.
See the entire definition of Cure

Cytology: The medical and scientific study of cells. Cytology refers to a branch of pathology , the medical specialty that deals with making diagnoses of diseases and conditions through the examination of tissue samples from the body.
See the entire definition of Cytology

Diagnosis: 1 The nature of a disease ; the identification of an illness. 2 A conclusion or decision reached by diagnosis. The diagnosis is rabies . 3 The identification of any problem. The diagnosis was a plugged IV.
See the entire definition of Diagnosis

Diethylstilbestrol: The earliest synthetic (man-made) form of the hormone estrogen .
See the entire definition of Diethylstilbestrol

Discharge: 1.The flow of fluid from part of the body, such as from the nose or vagina.
2. The passing of an action potential, such as through a nerve or muscle fiber .
3. The release of a patient from a course of care. The doctor may then dictate a discharge summary.
See the entire definition of Discharge

Douche: A stream of water directed at any part of the body or any body cavity, often into the vagina , for cleansing or medicinal purposes.
See the entire definition of Douche

Douching: Using water or a medicated solution to clean the vagina. Vaginal douching has been done for many, many years. However, there is currently concern that it may sometimes cause problems. It may mask, or even worsen, conditions such as bacterial or yeast infection of the vagina. Even more seriously, douching is associated with an increased risk of pelvic inflammatory disease (PID). It is also associated with an increased risk of an ectopic pregnancy (probably due to PID). The American College of Obstetricians and Gynecologists (ACOG) recommends against douching.
See the entire definition of Douching

Dysplasia: Abnormal in form. From the Greek dys- (bad, disordered, abnormal) and plassein (to form). For example, retinal dysplasia is abnormal formation of the retina during embryonic development.
See the entire definition of Dysplasia

Endometrial biopsy : A procedure for sampling the lining of the uterus (the endometrium).
See the entire definition of Endometrial biopsy

Endometrial hyperplasia: A condition characterized by overgrowth of the lining of the uterus. Hyperplasia means overgrowth. The endometrium is the inner layer of the uterus.

Endometrium: The uterine lining; the cells that line the uterus (the womb); the inner layer of the uterus. This tissue is shed monthly in response to the hormonal changes of the menstrual period. The endometrium then grows back and slowly gets thicker and thicker until the next period when it is once again sloughed off.

Epithelium: The outside layer of cells that covers all the free, open surfaces of the body including the skin, and mucous membranes that communicate with the outside of the body. By contrast the endothelium is the layer of cells lining the closed internal spaces of the body such as the blood vessels and lymphatic vessels (that convey the lymph, a milky fluid).

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Essential: 1. Something that cannot be done without.
2. Required in the diet, because the body cannot make it. As in an essential amino acid or an essential fatty acid.
3. Idiopathic. As in essential hypertension. "Essential" is a hallowed term meaning "We don't know the cause."

Estrogen: Estrogen is a female hormone produced by the ovaries. Estrogen deficiency can lead to osteoporosis .
See the entire definition of Estrogen

Excision: 1. Surgical removal, as in the excision of a tumor . 2. The removal as if by surgery, as in base excision repair .
See the entire definition of Excision

False positive: A result that is erroneously positive when a situation is normal. An example of a false positive: a particular test designed to detect cancer of the toenail is positive but the person does not have toenail cancer.
See the entire definition of False positive

FDA: The Food and Drug Administration, an agency within the U.S. Public Health Service, which is a part of the Department of Health and Human Services.
See the entire definition of FDA

Fertility: The ability to conceive and have children, the ability to become pregnant through normal sexual activity. Infertility is defined as the failure to conceive after a year of regular intercourse without contraception.
See the entire definition of Fertility

Fixative: A medium such as a solution or spray that preserves specimens of tissues or cells. Most biopsies and specimens removed at surgery are fixed in a solution such as formalin (dilute formaldehyde) before further processing takes place. Other common ingredients used in fixatives are alcohol, mercuric chloride, potassium dichromate and sodium sulfate.
See the entire definition of Fixative

Food and Drug Administration: The FDA, an agency within the U.S. Public Health Service, which is a part of the Department of Health and Human Services.
See the entire definition of Food and Drug Administration

Gastrointestinal: Adjective referring collectively to the stomach and small and large intestines.
See the entire definition of Gastrointestinal

Genital: Pertaining to the external and internal organs of reproduction. (Not to be confused with genetic.)

Genital wart: A wart in the moist skin of the genitals or around the anus. Genital warts are due to a human papillomavirus (HPV). The HPVs, including those that cause genital warts, are transmitted through sexual contact. HPV can also be transmitted from mother to baby during childbirth. Most people infected with HPV have no symptoms, but these viruses increase a woman's risk for cancer of the cervix. HPV infection is the most common sexually transmitted disease in the US. It is also the leading cause of abnormal PAP smears and pre-cancerous changes of the cervix in women. There is no cure for HPV infection, although anti-viral medications can reduce outbreaks and topical preparations can speed healing. Once contracted, the virus can stay with a person for life. Also called condyloma acuminatum, condylomata.

Guinea pig: 1.Cavia porcellus, also known as Cavia cobaya, a plump rodent native to South America brought to Europe by the Spanish conquistadors. Often kept as pets. And once very widely used aa a laboratory animal for research. 2.By extension, someone (or something) used as a subject of experimentation. In this sense, the term "guinea pig" may have negative connotations.
See the entire definition of Guinea pig

Gynecologist: A doctor who specializes in treating diseases of the female reproductive organs. The word "gynecologist" comes from the Greek gyno, gynaikos meaning woman + logia meaning study, so a gynecologist is literally a student of women, a women's doctor. However, these days gynecologists do not address all of women's medicine but instead focus mainly on disorders of the female reproductive organs.

Gynecology: The branch of medicine particularly concerned with the health of the female organs of reproduction and diseases thereof.
See the entire definition of Gynecology

Hemorrhage: Bleeding or the abnormal flow of blood.
See the entire definition of Hemorrhage back to top

HIV: Acronym for the Human Immunodeficiency Virus , the cause of AIDS (acquired immunodeficiency syndrome). HIV has also been called the human lymphotropic virus type III, the lymphadenopathy-associated virus and the lymphadenopathy virus . No matter what name is applied, it is a retrovirus. (A retrovirus has an RNA genome and a reverse transcriptase enzyme. Using the reverse transcriptase , the virus uses its RNA as a template for making complementary DNA which can integrate into the DNA of the host organism).
See the entire definition of HIV

Hormone: A chemical substance produced in the body that controls and regulates the activity of certain cells or organs.
See the entire definition of Hormone

Hormone therapy: A form of treatment that takes advantage of the fact that certain cancers depend on hormones to grow. Hormone therapy may include giving hormones to the patient or decreasing the level of hormones in the body.

HPV: See: Human papillomavirus.

Human papilloma virus: See: Human papillomavirus.

Human papillomavirus: HPV. A family of over 100 viruses including those which cause warts and are transmitted by contact. Some types of HPV are associated with tumors of the genital tract including, notably, cancer of the cervix.
See the entire definition of Human papillomavirus

Hyperplasia: A condition in which there is an increase in the number of normal cells in a tissue or organ.

Hysterectomy: A surgical operation to remove the uterus and, sometimes, the cervix . Removal of the entire uterus and the cervix is referred to as a total hysterectomy . Removal of the body of the uterus without removing the cervix is referred to as a subtotal hysterectomy .
See the entire definition of Hysterectomy

Immune: Protected against infection. The Latin immunis means free, exempt.

Immune system: A complex system that is responsible for distinguishing us from everything foreign to us, and for protecting us against infections and foreign substances. The immune system works to seek and kill invaders.
See the entire definition of Immune system

In situ: In the normal location. An "in situ" tumor is one that is confined to its site of origin and has not invaded neighboring tissue or gone elsewhere in the body.
See the entire definition of In situ

Infection: The growth of a parasitic organism within the body. (A parasitic organism is one that lives on or in another organism and draws its nourishment therefrom.) A person with an infection has another organism (a "germ") growing within him, drawing its nourishment from the person.
See the entire definition of Infection

Inflammation: A basic way in which the body reacts to infection , irritation or other injury, the key feature being redness, warmth, swelling and pain . Inflammation is now recognized as a type of nonspecific immune response .
See the entire definition of Inflammation

Intervention: The act of intervening, interfering or interceding with the intent of modifying the outcome. In medicine, an intervention is usually undertaken to help treat or cure a condition. For example, early intervention may help children with autism to speak. "Acupuncture as a therapeutic intervention is widely practiced in the United States," according to the National Institutes of Health. From the Latin intervenire, to come between.

Intraepithelial: Within the layer of cells that forms the surface or lining of an organ.

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Laboratory: A place for doing tests and research procedures and preparing chemicals, etc. Although "laboratory" looks very like the Latin "laboratorium" (a place to labor, a work place), the word "laboratory" came from the Latin "elaborare" (to work out, as a problem, and with great pains), as evidenced by the Old English spelling "elaboratory" designating "a place where learned effort was applied to the solution of scientific problems."
See the entire definition of Laboratory

Laser: A powerful beam of light that can produce intense heat when focused at close range. Lasers are used in medicine in microsurgery, cauterization, for diagnostic purposes, etc. For example, lasers are employed in microsurgery to cut tissue and remove tissue.
See the entire definition of Laser

Last menstrual period: By convention, pregnancies are dated in weeks starting from the first day of a woman's last menstrual period (LMP). If her menstrual periods are regular and ovulation occurs on day 14 of her cycle, conception takes place about 2 weeks after her LMP. A woman is therefore considered to be 6 weeks pregnant 2 weeks after her first missed period.
See the entire definition of Last menstrual period

Lesion: Pronounced "lee-sion" with the emphasis on the "lee," a lesion can be almost any abnormality involving any tissue or organ due to any disease or any injury.
See the entire definition of Lesion

Malignant: 1. Tending to be severe and become progressively worse, as in malignant hypertension. 2. In regard to a tumor, having the properties of a malignancy that can invade and destroy nearby tissue and that may spread (metastasize) to other parts of the body.
See the entire definition of Malignant

Medical history: 1. In clinical medicine, the patient's past and present which may contain clues bearing on their health past, present, and future. The medical history, being an account of all medical events and problems a person has experienced, including psychiatric illness, is especially helpful when a differential diagnosis is needed.
2. The history of medicine.

Menopause : The time in a woman's life when menstrual periods permanently stop; it is also called the "change of life." Menopause is the opposite of the menarche.
See the entire definition of Menopause

Menstrual: Pertaining to menstruation (the menses), as in last menstrual period, menstrual cramps, menstrual cycle, and premenstrual syndrome. From the Latin menstrualis, from mensis meaning month.

Menstrual cycle: The monthly cycle of changes in the ovaries and the lining of the uterus (endometrium), starting with the preparation of an egg for fertilization. When the follicle of the prepared egg in the ovary breaks, it is released for fertilization and ovulation occurs. Unless pregnancy occurs, the cycle ends with the shedding of part of the endometrium, which is menstruation. Although it is actually the end of the physical cycle, the first day of menstrual bleeding is designated as "day 1" of the menstrual cycle in medical parlance.

Menstruation: The periodic blood that flows as a discharge from the uterus. Also called menorrhea, the time during which menstruation occurs is referred to as menses. The menses occurs at approximately 4 week intervals to compose the menstrual cycle.

Microscope: An optical instrument that augments the power of the eye to see small objects. The name microscope was coined by Johannes Faber (1574-1629) who in 1628 borrowed from the Greek to combined micro-, small with skopein, to view. Although the first microscopes were simple microscopes, most (if not all) optical microscopes today are compound microscopes.

Microscopic: So small it cannot be seen without the aid of microscope. As opposed to macroscopic (large enough to be seen with naked eye). A tiny tumor is microscopic while a big tumor is macroscopic.
See the entire definition of Microscopic

Midwife: A person trained to assist a woman during childbirth. Many midwives also provide prenatal care for pregnant women, birth education for women and their partners, and care for mothers and newborn babies after the birth. A midwife may be a man or a woman. Depending on local law, midwives may deliver babies in the mother's home, in a special birthing center or clinic, or in a hospital.
See the entire definition of Midwife

Mortality: A fatal outcome or, in one word, death. The word "mortality" is derived from "mortal" which came from the Latin "mors" (death). The opposite of mortality is, of course, immortality. Mortality is also quite distinct from morbidity (illness).
See the entire definition of Mortality

Mucous: Pertaining to mucus, a thick fluid produced by the lining of some tissues of the body.
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Mucus: A thick slippery fluid produced by the membranes lining certain organs such as the nose, mouth, throat, and vagina. Mucus is the Latin word for "a semifluid, slimy discharge from the nose." Note that mucus is a noun while the adjective is mucous.

Neoplasia: The process of abnormal and uncontrolled growth of cells. The product of neoplasia is a neoplasm (a tumor).

NIH: The National Institutes of Health. The NIH is an important U.S. health agency. It is devoted to medical research. Administratively under the Department of Health and Human Services (HHS), the NIH consists of 20-some separate Institutes and Centers. NIH's program activities are represented by these Institutes and Centers.
See the entire definition of NIH

Nuclei: The plural of nucleus.

Nurse: 1) A person trained, licensed, or skilled in nursing. 2) To feed an infant at the breast.

Nurse practitioner: A registered nurse (RN) who has completed an advanced training program in a medical specialty such as pediatrics or internal medicine. Abbreviated NP. An NP may function as a primary direct provider of health care and prescribe medications. An NP may fill another role such as in research rather than in patient care.
See the entire definition of Nurse practitioner

Obstetrics: The art and science of managing pregnancy, labor and the puerperium (the time after delivery).

Onset: In medicine, the first appearance of the signs or symptoms of an illness as, for example, the onset of rheumatoid arthritis . There is always an onset to a disease but never to the return to good health. The default setting is good health.
See the entire definition of Onset

Organ: A relatively independent part of the body that carries out one or more special functions. The organs of the human body include the eye, ear, heart, lungs, and liver.

Ovary: The female gonad, the ovary is one of a pair of reproductive glands in women. They are located in the pelvis, one on each side of the uterus. Each ovary is about the size and shape of an almond. The ovaries produce eggs (ova) and female hormones. During each monthly menstrual cycle, an egg is released from one ovary. The egg travels from the ovary through a fallopian tube to the uterus. The ovaries are the main source of female hormones, which control the development of female body characteristics, such as the breasts, body shape, and body hair. They also regulate the menstrual cycle and pregnancy.

Pain: An unpleasant sensation that can range from mild, localized discomfort to agony. Pain has both physical and emotional components. The physical part of pain results from nerve stimulation. Pain may be contained to a discrete area, as in an injury, or it can be more diffuse, as in disorders like fibromyalgia . Pain is mediated by specific nerve fibers that carry the pain impulses to the brain where their conscious appreciation may be modified by many factors.
See the entire definition of Pain

Pap Smear: A screening test for cervical cancer based on the examination under the microscope of cells collected from the cervix , smeared on a slide and specially stained to reveal premalignant (before cancer) and malignant (cancer) changes as well as changes due to noncancerous conditions such as inflammation from infections.
See the entire definition of Pap Smear

Pap test: A screening test for cervical cancer based on the examination under the microscope of cells collected from the cervix , smeared on a slide and specially stained to reveal premalignant (before cancer) and malignant (cancer) changes as well as changes due to noncancerous conditions such as inflammation from infections. Also called a Pap smear.
See the entire definition of Pap test

Papilloma: A small solid benign tumor with a clear-cut border that projects above the surrounding tissue.

Pathologist: A doctor who identifies diseases by studying cells and tissues under a microscope.

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Pelvic: Having to do with the pelvis, the lower part of the abdomen, located between the hip bones.

Pelvic exam: An examination of the organs of the female reproductive system.
See the entire definition of Pelvic exam

Postoperative: After surgery. As opposed to preoperative, before surgery.

Precancerous: Pertaining to something that is not yet overtly cancerous, but appears to be on its way to becoming a cancer . Synonymous with premalignant.
See the entire definition of Precancerous

Pregnancy : The state of carrying a developing embryo or fetus within the female body. This condition can be indicated by positive results on an over-the-counter urine test, and confirmed through a blood test, ultrasound, detection of fetal heartbeat, or an X-ray. Pregnancy lasts for about nine months, measured from the date of the woman's last menstrual period (LMP). It is conventionally divided into three trimesters, each roughly three months long.
See the entire definition of Pregnancy

Premalignant: Pertaining to tissue that is not yet malignant, but is poised to become malignant. Appropriate clinical and laboratory studies are designed to detect premalignant tissue while it is still in a premalignant stages. A large battery of techniques are generally available to remove or kill the tissue, thereby preventing the development of cancer. The proper treatment method depends on the particular premalignant tissue involved. Following are a few examples of premalignant growths:
See the entire definition of Premalignant

Probe: (1) In surgery, a probe is a slender flexible rod with a blunt end used to explore, for example, an opening to see where it goes. (2) In molecular genetics, a probe is a labeled bit of DNA or RNA used to find its complementary sequence or locate a particular clone like homing in on a needle in a haystack.
See the entire definition of Probe

Radiotherapy: The treatment of disease with ionizing radiation. Also called radiation therapy .
See the entire definition of Radiotherapy

Reflex: A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze.
See the entire definition of Reflex

Respiratory: Having to do with respiration, the exchange of oxygen and carbon dioxide. From the Latin re- (again) + spirare (to breathe) = to breathe again.

Risk factor: Something that increases a person's chances of developing a disease.

Sensitivity: 1. In psychology, the quality of being sensitive. As, for example, sensitivity training, training in small groups to develop a sensitive awareness and understanding of oneself and of ones relationships with others. 2. In disease epidemiology, the ability of a system to detect epidemics and other changes in disease occurrence. 3. In screening for a disease, the proportion of persons with the disease who are correctly identified by a screening test. 4. In the definition of a disease, the proportion of persons with the disease who are correctly identified by defined criteria.

Specificity: 1. The quality of being specific as, for example, she showed the use of specificity in her diagnosis. 2. The proportion of persons without a disease who are correctly identified by a test. The specificity is the number of true negative results divided by the sum of the numbers of true negative plus false positive results.
See the entire definition of Specificity

Speculum: An instrument used to widen an opening to look within a passage or a cavity. For example, a speculum may be used to widen the opening of the vagina so that the cervix is more easily visible. Other examples include the nasal speculum to look up into the nostrils and the ear speculum to look within the ear canal at the ear drum. The term "speculum" is the Latin word for mirror.
See the entire definition of Speculum

Squamous cells: Flat cells that look like fish scales. The word "squamous" came from the Latin squama meaning "the scale of a fish or serpent."
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Squamous intraepithelial lesion: A general term for the abnormal growth of squamous cells on the surface of the cervix. The changes in the cells are described as low grade or high grade, depending on how much of the cervix is affected and how abnormal the cells are. Also called SIL.

Strain: 1. An injury to a tendon or muscle resulting from overuse or trauma. 2. A hereditary tendency that originated from a common ancestor. 3. To exert maximum effort. 4. To filter.

Subtotal hysterectomy : The uterus is surgically removed but the cervix is left is left in place. Also called a partial hysterectomy.
See the entire definition of Subtotal hysterectomy

Therapy: The treatment of disease .
See the entire definition of Therapy

Topical: Pertaining to a particular surface area. A topical agent is applied to a certain area of the skin and is intended to affect only the area to which it is applied. Whether its effects are indeed limited to that area depends upon whether the agent stays where it is put or is absorbed into the blood stream.
See the entire definition of Topical

Total hysterectomy : Complete surgical removal of the uterus and cervix. Also called a complete hysterectomy.
See the entire definition of Total hysterectomy

Transplant: The grafting of a tissue from one place to another, just as in botany a bud from one plant might be grafted onto the stem of another. The transplanting of tissue can be from one part of the patient to another (autologous transplantation), as in the case of a skin graft using the patient's own skin; or from one patient to another (allogenic transplantation), as in the case of transplanting a donor kidney into a recipient.

Trigger: Something that either sets off a disease in people who are genetically predisposed to developing the disease, or that causes a certain symptom to occur in a person who has a disease. For example, sunlight can trigger rashes in people with lupus.

Tumor: An abnormal mass of tissue. Tumors are a classic sign of inflammation, and can be benign or malignant (cancerous). There are dozens of different types of tumors. Their names usually reflect the kind of tissue they arise in, and may also tell you something about their shape or how they grow. For example, a medulloblastoma is a tumor that arises from embryonic cells (a blastoma) in the inner part of the brain (the medulla). Diagnosis depends on the type and location of the tumor. Tumor marker tests and imaging may be used; some tumors can be seen (for example, tumors on the exterior of the skin) or felt (palpated with the hands).
See the entire definition of Tumor

Urethra: The transport tube leading from the bladder to discharge urine outside the body. In males, the urethra travels through the penis, and carries semen as well as urine. In females, the urethra is shorter than in the male and emerges above the vaginal opening, as indicated here:

Urinary: Having to do with the kidneys, ureters, and bladder. The urinary system represents the functional and anatomic aspects of the kidneys, ureters, and bladder.

Urine: Liquid waste. The urine is a clear, transparent fluid. It normally has an amber color. The average amount of urine excreted in 24 hours is from 40 to 60 ounces (about 1,200 cubic centimeters). Chemically, the urine is mainly an aqueous (watery) solution of salt (sodium chloride) and substances called urea and uric acid. Normally, it contains about 960 parts of water to 40 parts of solid matter. Abnormally, it may contain sugar (in diabetes), albumen (a protein) (as in some forms of kidney disease), bile pigments (as in jaundice), or abnormal quantities of one or another of its normal components.

Uterine cancer: Cancer of the womb (the uterus). Also called endometrial cancer . Cancer of the uterus occurs most often in women between the ages of 55 and 70 years. It accounts for about 6% of cancer in women. Women at elevated risk for uterine cancer include those who are obese , who have few or no children, who began menstruating at a young age, who had a late menopause , and women of high socioeconomic status. It is thought that most of these risk factors are related to hormones, especially excess estrogen .


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Uterine lining: The inner layer of the uterus (womb); the cells that line the womb; anatomically termed the endometrium.
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Uterus: The uterus (womb) is a hollow, pear-shaped organ located in a woman's lower abdomen between the bladder and the rectum. The narrow, lower portion of the uterus is the cervix; the broader, upper part is the corpus. The corpus is made up of two layers of tissue.


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Vagina: The muscular canal extending from the cervix to the outside of the body. It is usually six to seven inches in length, and its walls are lined with mucus membrane . It includes two vaultlike structures, the anterior (front) vaginal fornix and the posterior (rear) vaginal fornix . The cervix protrudes slightly into the vagina, and it is through a tiny hole in the cervix (the os) that sperm make their way toward the internal reproductive organs. The vagina also includes numerous tiny glands that make vaginal secretions.
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Vaginal discharge: Vaginal discharge is a fluid produced by glands in the vaginal wall and cervix that drains from the opening of the vagina. The amount and appearance of normal vaginal discharge varies throughout the menstrual cycle. An increase in the amount of vaginal discharge, an abnormal odor or consistency of the fluid, or pain that accompanies vaginal discharge can all be signs of infection or other disorders. Such disorders include (this is not an all inclusive list) bacterial vaginosis, yeast vaginitis, and vaginitis.

Vaginitis: Inflammation of the vagina. The vagina is the muscular canal extending from the cervix to the outside of the body. Vaginitis is often caused by a fungus. A woman with this condition may have itching or burning and may notice a discharge. Vaginitis is a common condition. There are factors that predispose a woman to develop vaginitis. For example, women who have diabetes have vaginitis more often than women who do not.

Virus: A microorganism smaller than a bacteria, which cannot grow or reproduce apart from a living cell. A virus invades living cells and uses their chemical machinery to keep itself alive and to replicate itself. It may reproduce with fidelity or with errors (mutations)-this ability to mutate is responsible for the ability of some viruses to change slightly in each infected person, making treatment more difficult.
See the entire definition of Virus

Wart : A local growth of the outer layer of the skin (the epidermis) caused by a virus. The virus of warts (a papillomavirus) is transmitted by contact. The contact can be with a wart on someone else or one on oneself (autoinoculation).
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 Pap Smear Main Article |  Glossary |  Pap Smear Index 




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