[Endoscopy for the diagnosis of mast cell leukemia with refractory diarrhea: a case report].

Already a rare presentation in patients with systemic mastocytosis (SM), chronic diarrhea is even rarer in those with mast cell leukemia (MCL), a subtype of SM. We present a case to illustrate the utility of lower gastrointestinal endoscopy with histological examination in the diagnosis of MCL in a patient with chronic diarrhea. A woman in her 70s presented with persistent diarrhea.

A case of gallbladder neuroendocrine carcinoma complicated by ectopic adrenocorticotropic hormone syndrome and resulting in rapid fetal outcomes due to sepsis.

A 52-year-old woman presented to our hospital with chief complaints of upper abdominal bloating and lower leg edema. Computed tomography (CT) revealed liver metastasis from a gallbladder tumor. This tumor was diagnosed as neuroendocrine carcinoma (NEC) on performing a biopsy.

Transarterial embolization for ruptured pancreaticoduodenal artery aneurysm due to segmental arterial mediolysis combined with median arcuate ligament syndrome: a case report.

A 75-year-old female with a history of Parkinson's disease treatment and hypertension presented at the emergency section with sudden onset of right abdominal pain. Contrast-enhanced computed tomography revealed beaded irregular stenosis and dilation of the superior mesenteric artery (SMA) and an aneurysm in the branch of the pancreaticoduodenal artery (PDA) that communicates with the common hepatic artery and SMA. Additionally, a hematoma had formed in the retroperitoneal space, and extravasation of contrast medium from the pancreaticoduodenal artery aneurysm (PDAA) into the hematoma was observed.

Autoimmune hepatitis complicated by adult-onset Still's disease during treatment with tocilizumab: A case report from acute onset to recurrence.

The characteristics of liver dysfunction due to adult-onset Still's disease are not specific. Differentiating from autoimmune hepatitis is important in deciding whether to continue corticosteroid therapy, and also in terms of management of cirrhosis and surveillance of hepatocellular carcinoma. Liver biopsy is thought to be the most important determinant for differential diagnosis.

Neurofibromatosis Type 1 with a Giant Diffuse Plexiform Neurofibroma Invading the Liver.

Plexiform neurofibromas (PNs) occur in approximately 50% of patients with neurofibromatosis type 1 (NF1). PNs are rare in the abdominal cavity and especially rare in hepatobiliary lesions. A 31-year-old man with NF1 had a tumor extending along the celiac artery, superior mesenteric artery, and intrahepatic portal vein.