11/341. Biliary ascariasis: CT, MR cholangiopancreatography, and navigator endoscopic appearance--report of a case of acute biliary obstruction. A case of acute common bile duct obstruction caused by a roundworm in a 6-year-old girl is reported. Computed tomography (CT) and magnetic resonance imaging (MRI) showed "bull's-eye" and "eye-glass" appearances of the ascaris in the common bile duct. On reformation of the transverse CT and coronal MR images, the tubular ascaris was better depicted. MRI and navigator endoscopic demonstrations of the common bile duct ascaris have not been described previously in the literature. These CT and MRI findings may be helpful in the diagnosis of ascaris. ( info) |
12/341. Obstructive jaundice as the first clinical manifestation of a metastatic malignant melanoma in the ampulla of vater. The authors report a patient with obstructive jaundice as the first clinical manifestation of a primary malignant melanoma metastatic in the ampulla of vater. After the histologic diagnosis of the metastases was made, the primary tumor was located in the skin of the back. Obstruction jaundice secondary to ampullary obstruction due to metastatic melanoma has only been reported twice, and in neither case was jaundice the first symptom of the disease. ( info) |
13/341. Case report: Percutaneous drainage of the pancreatic head hydatid cyst with obstructive jaundice. We report a rare case of a patient with a primary hydatid cyst in the head of the pancreas who presented with obstructive jaundice caused by extrinsic compression of the intrapancreatic portion of the bile duct. The patient was treated successfully by ultrasound-guided percutaneous drainage of the cyst using hypertonic (20%) saline as the scolicidal agent and albendazole chemoprophylaxis before and after the drainage. The cyst was not visible on ultrasonography at 6 months follow up. Clinical, sonographic and serological follow up to 35 months showed no evidence of cyst recurrence or dissemination. In endemic areas of hydatid disease, hydatid cyst should be a differential diagnosis in cystic lesions of the pancreas in patients presenting with obstructive jaundice. ( info) |
14/341. Carcinoid tumors of the extrahepatic bile duct. A rare cause of malignant biliary obstruction. BACKGROUND: Carcinoid tumors of the extrahepatic bile duct are rare and account for 0.2-2% of all gastrointestinal carcinoids. Similar to other tumors of the bile duct, these lesions are difficult to diagnose preoperatively and nearly impossible to distinguish from cholangiocarcinoma. methods: The authors retrospectively analyzed all reported cases of carcinoid tumor of the bile duct and report on two additional cases. RESULTS: Thirty cases of carcinoid tumor of the bile duct have been reported. Among this group were 20 women and 9 men (female-to-male ratio, 2.2:1) with an overall mean age of 47 years (range, 19-79 years). The most common anatomic sites for extrahepatic carcinoid tumors were the common bile duct (58%), perihilar region (28%), cystic duct (11%), and common hepatic duct (3%). jaundice was the most common presenting complaint (55%). Sixty-nine percent of patients with extrahepatic biliary carcinoids had disease confined to the bile duct, whereas 31% had evidence of distant metastases. All patients who presented with localized disease remain disease free with a mean follow-up of 32 months (range, 3 months to 20 years). CONCLUSIONS: carcinoid tumor of the bile duct is a rare form of malignant biliary obstruction. Unlike cholangiocarcinoma, biliary carcinoids occur more commonly in younger patients and in women. Aggressive local invasion by the primary tumor is rare, and metastases occur in less than one-third of patients. All patients who underwent a curative surgical resection were alive and disease free at time of published report, implying a more favorable prognosis. Aggressive surgical resection is recommended. ( info) |
15/341. cholecystostomy: an unusual approach to stenting of a distal common bile duct stricture. Strictures, both benign and malignant, of the distal common bile duct (CBD) are reasonably common, and if stented are usually approached endoscopically via the duodenum, or transhepatically via an intrahepatic and then common hepatic duct. We describe a case of endoscopic stenting of a distal CBD stricture over a wire passed percutaneously through the gallbladder, cystic duct and into the duodenum. To our knowledge, this has not been previously described. ( info) |
16/341. Gut perforation caused by biliary endoprosthesis. Two cases are reported of perforation of the gut caused by biliary endoprosthesies in the three-year period 1993-1995. The first patient was an 81-year-old man who had perforation of the terminal ileum caused by a straight 10 French/7 cm stent which had been dislodged from the bile duct; he underwent laparotomy but did not recover. The second patient was an 86-year-old man who had perforation of the sigmoid colon caused by a straight 7 French/5 cm stent left in the duodenum during a stent exchange procedure; he was successfully treated laparoscopically. Two cases of gut perforation in a three-year period is a rather high rate of this rare complication of placement of biliary endoprostheses. ( info) |
| mirizzi syndrome is a rare pathology of the extrahepatic biliary system caused by a large gallbladder calculous either compressing or eroding into the collecting biliary tree. This paper describes a case of mirizzi syndrome with atypical presentation. A review of the literature including diagnostic and therapeutic modalities are reported. ( info) |
18/341. Rabdomyosarcoma of the biliary tree. Rabdomyosarcoma of the biliary tree is one of the rare causes of biliary tract obstruction in childhood. Nevertheless it is the most common cause of obstructive jaundice due to neoplastic biliary obstruction. We present a two-year-old child with obstructive jaundice secondary to an embryonal rhabdomyosarcoma of the biliary tree. She underwent surgery and, after total excision of the mass, a hepaticojejunostomy and Roux-en-Y anastomosis were performed. She was referred to the Pediatric Oncology Group for follow-up. rhabdomyosarcoma of the bilary tree, although rare, must be considered in the etiology of obstructive jaundice in children. ( info) |
| This is a case presentation of a 14-year-old boy with the radiological diagnosis of cholangiocarcinoma occluding the hepatic duct bifurcation. His only symptom at presentation was jaundice and further workup confirmed a mass at the porta hepatis. Surgical treatment resulted in a resection of the hepatic bifurcation tumor with a final pathological diagnosis of a carcinoid tumor of the hepatic duct bifurcation. To our knowledge, this is only the second case presented of a resected carcinoid tumor in adolescence. In this communique we present the above case and review of the world literature of biliary neuroendocrine tumors. ( info) |
20/341. common bile duct stenosis with hypereosinophilia and pancreatitis in childhood: report of 2 cases. common bile duct stenosis associated with pancreatitis and hypereosinophilia is described in two children. ultrasonography and CT showed slight increase in the size of the pancreas and bile duct dilatation. Percutaneous cholangiography (PTC) demonstrated extrinsic stenosis of the bile duct at the level of the pancreas. Spontaneous resolution of the clinical and radiological findings was observed. knowledge of this rare pathological association with favourable evolution can avoid an unnecessary surgical procedure. ( info) |