RATIONAL Primary malignant melanoma of the gallbladder is an extremely rare tumor, with fewer than 40 cases reported in the literature worldwide. The majority of patients presented as a solitary lesion in the gallbladder. To our knowledge, only one case of primary malignant melanoma of the gallbladder with multiple metastases has been reported, which involved the stomach, duodenum, pancreas, je...

PURPOSE Iodinated contrast agents lead to contraction of the gallbladder. The purpose of this prospective study was to investigate whether the paramagnetic contrast agents used for magnetic resonance imaging (MRI) cause volume changes in gallbladder or not. MATERIALS AND METHODS The gallbladder volume changes were evaluated by ultrasound just before and 15 minutes after the imaging procedure ...

BACKGROUND Gallbladder pathology has been associated with cardiovascular disease. Recently, we showed that gallbladder distension in anesthetized pigs reflexly increased heart rate, arterial pressure, and coronary and renal vascular resistance through efferent sympathetic mechanisms. Renin release is affected by sympathetic output, and angiotensin liberation may result in vasoconstriction. This...

Double gallbladder is a rare congenital biliary anomaly, but an accessory gallbladder arising from the left hepatic duct is a more remarkably rare congenital anomaly. We report a case of double gallbladder with adenocarcinoma and gallstones, which was preoperatively diagnosed by endoscopic retrograde cholangiopancreatography (ERCP) and then confirmed by open laparotomy. A review of the literatu...

Laparoscopic cholecystectomy is usually performed for gallstones or polyp of the gallbladder. Multiseptate gallbladder is a rare congenital malformation. Although several asymptomatic cases have been described, patient usually present with right upper abdominal pain. We present a 29-year-old female patient with multiseptate gallbladder, cholecystectomy was performed, and her abdominal pain and ...

Pancreatic secretion of enzymes and gallbladder contraction in response to intestinal stimulants are thought to be mediated through the vagus nerve and by means of release of cholecystokinin (CCK). The effect of truncal vagotomy on the release of CCK, pancreatic protein secretion, and gallbladder pressure (all stimulated by intraduodenal instillation of oleate) was studied in five dogs. Each do...

INTRODUCTION Undifferentiated gallbladder carcinoma is a rare entity. Among unusual types of undifferentiated gallbladder carcinoma, giant cell type carcinoma is infrequent and, moreover, very few cases of such neoplasms with osteoclast-like giant cells have been documented. We report a case of undifferentiated gallbladder carcinoma presenting an unusual immunophenotype that was shown to be of ...

We report 2 patients with acute cholecystitis for which percutaneous transhepatic gallbladder aspiration (PTGBA) was useful. In Case 1, the patient was a 75-year-old woman who experienced a sudden onset of back pain and upper abdominal pain at night. Abdominal ultrasound (US) showed enlargement of the gallbladder with thickening of the wall, a sonolucent layer, and a stone in the neck of the ga...

Duplication of the gallbladder is a surprisingly common phenomenon. Clinically, these patients present with straightforward gallbladder pathologies. It is a challenging preoperative diagnosis on ultrasound, and most cases are diagnosed intra-operatively. We present a case of gallbladder duplication, where the patient presented with biliary colic, had a straightforward laparoscopic cholecystecto...

Although infrequent, gallbladder injury occurs in approximately 2% of blunt abdominal trauma cases, which are most commonly caused by motor vehicle accidents. Furthermore, isolated gallbladder injury, including gallbladder perforation, is even more rare. A 39 year-old male patient fell down accidentally from a height of 3 m and was sustained injuries, causing right upper quadrant pain and lacer...