n. an abnormal collection of small blood vessels usually in the lining (mucosal surface) of the gastrointestinal tract, which can bleed. These are common in the large and small intestine, but can also be found in the lining of stomach and mouth. The condition is diagnosed by gastroscopy, colonoscopy, video capsule endoscopy, enteroscopy (see enteroscope), or mesenteric angiography. Treatment options include endoscopic coagulation with diathermy, argon plasma, or laser application, and surgical removal in cases not responding to endoscopic treatments.
Subjects: Medicine and Health.