Yoshito Kimura

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Nonalcoholic steatohepatitis (NASH) is an inflammatory form of nonalcoholic fatty liver disease that progresses to liver cirrhosis. It is still unknown how only limited patients with fatty liver develop NASH. Tumor necrosis factor (TNF)-α is one of the key molecules in initiating the vicious circle of inflammations. Nardilysin (N-arginine dibasic(More)
A 79-year-old woman with pneumobilia and liver dysfunction was admitted to our hospital. ERCP and gastrointestinal endoscopy revealed choledochal stones and a cholecystogastric fistula at the greater curvature of the gastric antrum. The risk of cholecystectomy and fistulectomy appeared to be extremely high for this patient because of her advanced age and(More)
A 47-year-old man was found to have abnormal findings on chest radiography. Chest computed tomography (CT) and magnetic resonance imaging (MRI) showed that he had a pulmonary arteriovenous malformation. He had experienced epistaxis when he was a junior high school student, and since then, the symptom had frequently recurred. Further, he had telangiectasia(More)
A 55-year-old man presented at our hospital with a large polypoid esophageal tumor. Initial upper gastrointestinal endoscopy revealed that this tumor had sloughed off to be replaced with ulceration in the thoracic esophagus. However, after the tumor at the thoracic esophagus sloughed off, a semi-circular, superficial, flat squamous cell carcinoma was(More)
Acetaminophen (paracetamol), a widely used antipyretic/analgesic, is a well-known agent causing acute hepatic injury. Whereas most cases are caused by its intrinsic hepatotoxicity, idiosyncratic hepatitis by the allergic mechanism is extremely rare. We herein report a case of late-onset acetaminophen-induced allergic hepatitis with progression to(More)
A 48-year-old man was admitted to our hospital because of eosinophilia and liver dysfunction. Initial abdominal CT and MRI (MRCP) finding showed almost normal liver and bile duct. Liver biopsy demonstrated mild portal infiltration of lymphocytes and eosinophils. Definitive diagnosis was difficult, but we suspected autoimmune disease. Oral steroid(More)
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