Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «E»:
Erythroplakia: A reddened patch with a velvety surface found in the mouth....
Erythropoietin (EPO): A hormone produced by the
kidney that promotes the formation of red blood cells in the
bone marrow. EPO is a glycoprotein (a protein with a
sugar attached to it). Human EPO has a molecular weight of 34,000.
The kidney cells that make EPO are specialized and are
Erythropoietin test: A test of the hormone erythropoietin (EPO) in blood. An abnormal level of EPO may mean bone marrow or kidney disease or EPO abuse.
Testing EPO blood levels is thus of value if:
Too little EPO might be responsible for too few red
blood cells (such as in evaluating anemia).
Erythroprosopalgia: A distinctive
syndrome of headaches, also known as cluster headache or
migrainous neuralgia. The common pattern of cluster
headache is termed "episodic" and is characterized by 1-3
short attacks of pain each day around the eyes, clustered
over a stretch of 1-2 months, follo...
Eschar: The scab formed when a wound or
skin is sealed by the heat of cautery or burning. Also the dark crusted ulcer (tache
noire) at the site of the chigger (mite larva) bite in scrub typhus. ...
Escherichia coli: Full term for E. coli, the colon bacillus. ...
Eskalith: See: Lithium....
Esophageal: Pertaining to the esophagus....
Esophageal acid infusion test
Esophageal acid infusion test: See: Bernstein test....
Esophageal cancer: A malignant tumor of the esophagus. The risk of cancer of the esophagus is increased by long-term irritation of the esophagus, such as from smoking, heavy alcohol intake, and Barrett esophagitis. The risk of esophageal cancer rises with the number of cigarettes smoked per day and ...
Esophageal cancer with tylosis
Esophageal cancer with tylosis: See: Tylosis with esophageal cancer....
Esophageal reflux: A condition wherein stomach contents
regurgitate or back up (reflux) into the esophagus (a long cylindrical tube that
transports food from the mouth to the stomach). The food in the stomach is partially
digested by stomach acid and enzymes. Normally, the partially digested acid co...
Esophageal speech: Speech produced with air trapped in the
esophagus and forced out again. People with a laryngectomy (for example, for laryngeal cancer) may be taught to produce esophageal speech....
Esophageal stricture, acute
Esophageal stricture, acute: A narrowing or closure of
the normal opening of the swallowing tube leading to the stomach, usually caused by
scarring from acid irritation. Acute, complete obstruction of the esophagus occurs when
food (usually meat) is lodged in the esophageal stricture. Patients exper...
Esophageal stricture, chronic
Esophageal stricture, chronic: A longstanding narrowing
or closure of the normal opening of the swallowing tube leading to the stomach, usually
caused by scarring by acid irritation. Narrowing of the esophagus. A common complication
of chronic gastroesophageal reflux disease (GERD). Several procedur...