首页|Mucosal necrosis of the small intestine in myopathy,encephalopathy, lactic acidosis, and stroke-like episodes syndrome
Mucosal necrosis of the small intestine in myopathy,encephalopathy, lactic acidosis, and stroke-like episodes syndrome
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This report presents a case of massive mucosal necrosis of the small intestine in a patient with mitochondrial myopathy,encephalopathy,lactic acidosis,and stroke-like episodes (MELAS),which particularly affects the brain,nervous system and muscles.A 45-year-old Japanese female,with an established diagnosis of MELAS,presented with vomiting.Computed tomography showed portomesenteric venous gas and pneumatosis intestinalis.She underwent a resection of the small intestine.A microscopic study showed necrosis of the mucosa and vacuolar degeneration of smooth muscle cells in the arterial wall.Immunohistochemistry showed anti-mitochondrial antibody to be highly expressed in the crypts adjacent the necrotic mucosa.The microscopic and immunohistochemical findings suggested the presence of a large number of abnormal mitochondria in MELAS to be closely linked to mucosal necrosis of the small intestine.
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