mutation
Any change in the DNA of a cell.
Read definitionSearch the glossary
Any change in the DNA of a cell.
Read definitionWhether the ache sits in one muscle or everywhere at once is the first question, because the two lists of causes barely overlap.
Read definitionThe myometrium is the thick muscular wall of the uterus that contracts during labor and menstruation and gives the organ its structural strength.
Read definitionA substance that is being studied in the treatment of leukemia.
Read definitionOne of the few drugs that does nothing at all unless a particular poison is present, which is what makes it usable by bystanders.
Read definitionNot one disease but a family of them, sharing inflamed kidney tissue and a set of clues that appear in the urine.
Read definitionPressure rather than pain is the danger, since urine that cannot escape backs up and injures the kidney quickly.
Read definitionNephrotoxic describes a substance capable of damaging the kidneys, a property considered when prescribing certain medications or evaluating toxic exposures.
Read definitionNeuroblastoma is a cancer of immature nerve cells that develops mainly in infants and young children, often starting near the adrenal gland.
Read definitionNeuroendocrine tumors arise from hormone releasing cells scattered throughout the body and can secrete excess hormones causing varied symptoms.
Read definitionA nevus, more commonly called a mole, is a benign cluster of pigment producing skin cells that can be flat or slightly raised.
Read definitionNicotine gum is an over the counter chewing gum that delivers a measured dose of nicotine to ease cravings during smoking cessation.
Read definitionChemicals that assemble wherever nitrite meets the right partner, including inside the stomach, and that damage DNA once the liver has processed them.
Read definitionA clinical study that includes some, but not all, of the eligible patients identified by the researchers during the study registration period.
Read definitionMost of what circulates leaks from sympathetic nerve endings rather than pouring out of the adrenal glands, unlike its better known relative.
Read definitionBlockage of a hollow structure such as the bowel, airway, urinary tract, or a duct, slowing or halting what normally passes through.
Read definitionOCT is an imaging technique that uses light waves to produce cross-sectional pictures of tissue, most familiar as a routine eye exam of the retina.
Read definitionA type of radionuclide scan used to find carcinoid and other types of tumors.
Read definitionOcular melanoma is a rare cancer of the pigment producing cells within the eye, most often arising in the middle layer called the uvea.
Read definitionOmentectomy removes the omentum, a fatty membrane that drapes over the abdominal organs, most often performed during surgery for ovarian or gastrointestinal cancer.
Read definitionFor learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.