A case of acute recurrent pancreatitis caused by biliopancreatic reflux without pancreaticobiliary maljunction.

Acute recurrent pancreatitis (ARP) is a clinical condition characterized by repeated episodes of acute pancreatitis. In this case study, a 62-year-old man was diagnosed with mild pancreatitis five years ago, with alcohol intake initially considered the cause. Since then, he experienced three episodes of pancreatitis despite ceasing alcohol consumption completely.

Endoscopic diagnosis of chronic diarrhea.

The prevalence of chronic diarrhea in the general population is reported to be 4%-5%. Since various pathological conditions cause diarrheal symptoms, etiological diagnosis of chronic diarrhea is difficult in many cases. Medical history taking, physical examinations, and laboratory testing are not adequately sensitive or specific, thus a colonoscopic investigation is frequently employed for etiological evaluation.

A case of COVID-19 diarrhea relieved by bile acid sequestrant administration.

Patients with coronavirus disease 2019 exhibit various gastrointestinal symptoms. Although diarrhea is reported in many cases, the pathophysiology of diarrhea has not been fully clarified. Herein, we report a case of coronavirus disease 2019 with diarrhea that was successfully relieved by the administration of a bile acid sequestrant.

[An autopsy case of anaplastic pancreatic carcinoma with diffuse liver metastases in acute hepatic failure].

A 76-year-old man presented to our hospital with continuous abdominal pain and vomiting. The results of the computed tomography indicated a pancreatic head mass with multiple liver metastatic tumors. Multiple liver tumors progressed rapidly, and the patient died of the resulting acute hepatic failure approximately 1 month after the onset of symptoms.

Successful Treatment of Bouveret Syndrome by Electrohydraulic Lithotripsy and Double Balloon Endoscopy.

BACKGROUND Bouveret syndrome is a rare complication of cholelithiasis that often leads to symptoms of gastric outlet obstruction. CASE REPORT An 84-year-old woman developed acute abdominal symptoms due to impaction of a gallstone in the horizontal part of the duodenum. The diagnosis was supported by abdominal computed tomography and double balloon endoscopy.

Case of resected multiple hepatocellular adenomas in a young man with severe obesity.

Background: Hepatocellular adenoma (HCA) is a rare liver tumor that has the potential for rupture and malignant transformation. Here, we report a case of multiple hepatocellular adenomas (HCAs) that were treated by surgical resection.

Case Presentation: An 18-year-old man was admitted to our hospital with proteinuria.

Acute Pancreatitis Caused by Ampullary Duodenum Adenoma in a Patient with Adenomatous Polyposis Coli with Billroth II Reconstruction After Distal Gastrectomy.

BACKGROUND Adenomatous polyposis coli is an autosomal dominant hereditary disorder. Duodenal adenocarcinoma and adenoma, which are extracolonic lesions, not only affect the prognosis of patients but also cause acute pancreatitis. CASE REPORT We present the case of a 73-year-old male.

[A case of intracholecystic papillary neoplasm of the gallbladder (ICPN) examined using contrast-enhanced endoscopic ultrasonography].

A 78-year-old woman was found to have gallbladder wall thickening on ultrasonography during a routine health check-up and was referred to our clinic. On contrast-enhanced endoscopic ultrasonography, a papillary lesion measuring 14mm was detected in the fundus, which showed a heterogeneous enhancement at the early phase. She underwent cholecystectomy and gallbladder bed resection.

[A case of pancreatic mixed acinar-endocrine carcinoma suggested by preoperative ultrasound-guided fine needle aspiration].

A 73-year-old man visited our hospital for consultation regarding a pancreatic tumor. Abdominal computed tomography, magnetic resonance imaging, and endoscopic ultrasound scan (EUS) revealed tumor 2 cm in diameter located in the pancreatic tail. EUS-guided fine needle aspiration (EUS-FNA) suggested pancreatic mixed acinar-endocrine carcinoma, and he underwent distal pancreatectomy.