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In medicine (gastroenterology), angiodysplasia is a small vascular malformation of the gut. It is a common cause of otherwise unexplained gastrointestinal bleeding and anemia . Lesions are often multiple, and frequently involve the cecum or ascending colon , although they can occur at other places.
Heyde's syndrome; A stenotic aortic valve: Specialty: Cardiology, general surgery, Hematology: Symptoms: Aortic valve stenosis symptoms: Chest pain (angina) or tightness Shortness of breath, especially during exertion or when lying down Fatigue or weakness Irregular heartbeat or heart palpitations Dizziness or fainting episodes Gastrointestinal bleeding symptoms: Occult (hidden) or overt ...
An arteriovenous malformation (AVM) is an abnormal connection between arteries and veins, bypassing the capillary system. Usually congenital , this vascular anomaly is widely known because of its occurrence in the central nervous system (usually as a cerebral AVM ), but can appear anywhere in the body.
[1] [2] The condition is associated with dilated small blood vessels in the gastric antrum, which is a distal part of the stomach. [1] The dilated vessels result in intestinal bleeding. [3] It is also called watermelon stomach because streaky long red areas that are present in the stomach may resemble the markings on watermelon. [1] [2] [3] [4]
Lesions affecting the colon or end of the small bowel (terminal ileum) may be diagnosed during colonoscopy. Dieulafoy's lesions are not easily recognized and therefore multiple evaluations with endoscopy may be necessary. Once identified during endoscopy, the mucosa near a Dieulafoy's lesion may be injected with ink.
The small intestine is the site where most of the nutrients from ingested food are absorbed. The inner wall, or mucosa, of the small intestine, is lined with intestinal epithelium, a simple columnar epithelium. Structurally, the mucosa is covered in wrinkles or flaps called circular folds, which are considered permanent features in the mucosa.
small intestinal bacterial overgrowth: SID: semel in die meaning once daily. Used only in veterinary medicine. SIDS: sudden infant death syndrome: SIL: squamous intraepithelial lesion SIMV: synchronized intermittent mechanical ventilation: si op. sit: if needed (from Latin si opus sit) SIRS: systemic inflammatory response syndrome SIT
Superior mesenteric artery compressing the duodenum, featuring the superior mesenteric artery syndrome. Superior mesenteric artery (SMA) syndrome is a gastro-vascular disorder in which the third and final portion of the duodenum is compressed between the abdominal aorta (AA) and the overlying superior mesenteric artery.