1/288. Biliary papillary hyperplasia with clonorchiasis resembling cholangiocarcinoma.infection by the liver fluke clonorchis sinensis is very common in the far east. It causes low grade inflammatory changes and proliferation in the biliary tree. Initially there is desquamation of the biliary epithelium, followed by hyperplasia and adenomatous proliferation. Cholangiocarcinomas are potential long term complications. We present a case of biliary papillary hyperplasia with clonorchiasis resembling cholangiocarcinoma in a 69-yr-old Korean man. Early recognition of biliary hyperplasia and treatment of clonorchis sinensis is important to prevent development of cholangiocarcinoma, especially in the far east.- - - - - - - - - - ranking = 1keywords = carcinoma (Clic here for more details about this article) |
2/288. Combined hepatocellular-cholangiocarcinoma. Diagnostic challenge in hepatic fine needle aspiration biopsy.OBJECTIVE: To study the cytohistologic features of combined hepatocellular-cholangiocarcinoma (CHCC-CC) in fine needle aspiration biopsy (FNAB) material. STUDY DESIGN: Six hepatic FNAB cases with cell blocks (five) and hepatic resections (two) were analyzed cytohistologically and immunohistochemically. RESULTS: The six cases were diagnosed as CHCC-CC based on clinicopathologic correlation. Unequivocal hepatocellular carcinoma (HCC) cells corresponding to Edmondson and Steiner's grade 3 lesions were identified in the FNAB in three instances. adenocarcinoma, represented by cohesive columnar cells with ovoid, basal nuclei displaying nuclear palisading, acini and/or papillary structures with variable intracytoplasmic intraacinar or brush border mucin production, was identified in all cases. Intermediate cells with hybrid/polymorphic cytologic features straddling malignant hepatocytes and glandular cells were identified in five instances. Tissue alpha-fetoprotein was negative. There was brush border and/or diffuse cytoplasmic p-carcinoembryonic antigen immunoreactivity in the glandular elements. CONCLUSION: FNAB diagnosis of CHCC-CC is possible if the clinical, cytohistologic and immunohistochemical findings support the presence of HCC and adenocarcinoma. Intermediate cells pose a great challenge to recognize and define: they tend to lose the classic cytologic features of malignant hepatocytes and acquire glandular characteristics. At the very least, there should be a high index of suspicion. These cases underscore the necessity for clinicopathologic correlation in enhancing the precision of FNAB diagnoses.- - - - - - - - - - ranking = 1.1428571428571keywords = carcinoma (Clic here for more details about this article) |
3/288. Primary liver carcinoma complicating membranous obstruction of the inferior vena cava.A rare autopsy case of primary liver carcinoma complicating a pre-existing, incomplete membranous obstruction of the inferior vena cava (MOVC) is reported. The patient, a 67-year-old Japanese male, was admitted to hospital following a 2 year illness of a left chest wall tumor and a 3 month illness with progressive abdominal pain. Computed tomography scans of the abdomen displayed space-occupying lesions in the third and seventh hepatic segments, respectively. One month later, the patient developed edema of the lower extremities and marked venous dilatation of the abdominal trunk. At that time, Doppler examination revealed the presence of intrahepatic large venovenous collaterals. The patient subsequently succumbed 82 days after hospitalization. At subsequent autopsy, the inferior vena cava was completely obstructed by tumor thrombus, which was formed caudally and cranially to a thin membrane and mimicked the valve, with calcification and elastic lamina, at the phrenic portion. Intrahepatic large collateral pathways were found between submembranous and supramembranous hepatic veins. Anomalous absence of the ostia of the middle hepatic vein was found. In addition, the portal venous trunk was occluded by tumor thrombus. histology of hepatic tumors revealed a combined hepatocellular and cholangiocellular carcinoma in the non-cirrhotic liver with severe acute centrilobular congestion. In MOVC patients such as the case presented, malignancy-induced thrombosis was deemed to be an important factor in prognosis.- - - - - - - - - - ranking = 0.85714285714286keywords = carcinoma (Clic here for more details about this article) |
4/288. Peripheral clear cell cholangiocarcinoma: a rare histologic variant.We present the case of a 50-year-old diabetic male who underwent open cholecystectomy for acute gangrenous cholecystitis. At the time of exploration, a 1.5-cm mass was found peripherally in the right lobe of his liver, and an incisional biopsy was performed. Microscopic examination revealed a distinct overgrowth of clear cells in an acinar pattern, with tumor cells emerging directly from bile ducts. The tumor cells were periodic acid-Schiff reactive and diastase resistant, indicating the presence of mucin. No bile canaliculi were demonstrated by immunostaining with carcinoembryonic antigen. CT scans of the chest and abdomen were otherwise normal. Based on these microscopic, immunohistochemical, and clinical data, a diagnosis of clear cell cholangiocarcinoma was established. The patient later underwent reexploration and generous hepatic wedge resection. He did well postoperatively and is free of disease after 12 months.- - - - - - - - - - ranking = 0.71428571428571keywords = carcinoma (Clic here for more details about this article) |
5/288. Intrahepatic cholangiocarcinoma with extensive sarcomatous change: report of a case.A 77-year-old woman was admitted to our hospital with severe upper abdominal pain. ultrasonography showed a well-defined hypoechoic mass with heterogeneity in the left lobe of the liver, and computed tomography demonstrated a low-density mass with enhanced peripheral areas. magnetic resonance imaging revealed a mass with iso- to low signal intensity on T1-weighted images (WI) and heterogeneous high and low signal intensity on T2 WI. The tumor was found to be hypovascular by angiography. During 5 months of observation, the tumor increased in size, which strongly suggested malignancy. A laparotomy was performed under the provisional diagnosis of a neoplasm other than hepatocellular carcinoma, revealing that the hepatic mass had invaded the gastric wall. Therefore, a left hepatic lobectomy with dissection of the lymph nodes and hemigastrectomy was carried out. Histologically, the tumor was found to be composed of a large amount of sarcomatous elements and a small amount of adenocarcinomatous elements, both of which were partly intermingled. Immunohistochemically, the sarcomatous element demonstrated the features of malignant fibrous histiocytoma (MFH). Thus, a diagnosis of intrahepatic cholangiocarcinoma with MFH-like sarcomatous change was confirmed.- - - - - - - - - - ranking = 1keywords = carcinoma (Clic here for more details about this article) |
6/288. cholangiocarcinoma presenting as lung mass with hemoptysis.A case of peripheral cholangiocarcinoma with the presentation of chronic hemoptysis and lung mass without evident jaundice is reported. Exophytic spread of hepatobiliary disease through the diaphragm through perihepatic ligaments is described as the possible route of invasion of the tumor.- - - - - - - - - - ranking = 0.71428571428571keywords = carcinoma (Clic here for more details about this article) |
7/288. Recurrent thrombo-embolic episodes: the association of cholangiocarcinoma with antiphospholipid syndrome.antiphospholipid syndrome is a disorder of recurrent vascular thrombosis, pregnancy loss and thrombocytopenia associated with persistently elevated levels of antiphospholipid antibodies. It was first described in a group of patients with systemic lupus erythematosus but has since been associated with a wide range of conditions, including other autoimmune disorders and malignancy. It can also occur in isolation, the so-called primary antiphospholipid syndrome. We describe an elderly woman with the antiphospholipid syndrome thought to be associated with a cholangiocarcinoma.- - - - - - - - - - ranking = 0.71428571428571keywords = carcinoma (Clic here for more details about this article) |
8/288. Diffuse bile duct carcinoma treated by major hepatectomy and pancreatoduodenectomy with the aid of pre-operative portal vein embolization. Report of two cases.A successful resection rate for diffuse bile duct carcinoma is low. Major hepatectomy combined with pancreatoduodenectomy is a possible choice for curative resection, but the post-operative mortality rate after such an extensive surgery has been reported to be high. The main reason for post-operative death is liver failure. With the aid of pre-operative portal vein embolization, major hepatectomy (left lobectomy and extended right lobectomy with caudate lobectomy) and pylorus-preserving pancreatoduodenectomy was successfully applied to 2 patients with diffuse bile duct carcinoma as a one-stage surgery. We herein report these 2 cases discussing the usefulness of pre-operative portal vein embolization.- - - - - - - - - - ranking = 0.85714285714286keywords = carcinoma (Clic here for more details about this article) |
9/288. Monolobar Caroli's disease and cholangiocarcinoma.Caroli's disease (CD) is a rare congenital disorder characterized by cystic dilatation of the intrahepatic bile ducts. This report describes a patient with cholangiocarcinoma arising in the setting of monolobar CD. In spite of detailed investigations including biliary enteric bypass and endoscopic retrograde cholangiography, the diagnosis of mucinous cholangiocarcinoma (CCA) was not made for almost one year. The presentation, diagnosis and treatment of monolobar CD and the association between monolobar CD and biliary tract cancer are discussed. Hepatic resection is the treatment of choice for monolobar CD.- - - - - - - - - - ranking = 0.85714285714286keywords = carcinoma (Clic here for more details about this article) |
10/288. Positron emission tomography and cholangiocarcinoma in primary sclerosing cholangitis.We present the case of a 44-year-old male patient with a history of primary sclerosing cholangitis who developed a cholangiocarcinoma with pulmonary metastasis. The cholangiocarcinoma was identified in the PET scan by its enhanced 18F-FDG-uptake. prospective studies should be performed to demonstrate whether PET will be suited to detect small and early cholangiocarcinomas, particular in young patients, who could be treated immediately and curatively by liver transplantation.- - - - - - - - - - ranking = 1keywords = carcinoma (Clic here for more details about this article) |
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