Erythropoietin (EPO)
See Erythropoietin (EPO).
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- Erythropoietin test
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). Too much EPO […]
- Erythroprosopalgia
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, followed by a pain-free breathing period (average: a year). The other […]
- Eschar
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.
- 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. Very small tumors in the esophagus usually do not cause symptoms. As a tumor grows, the most common symptom is difficulty in swallowing. There […]
- Esophageal reflux
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 content in the stomach is delivered by the stomach […]