Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0023890 (cirrhosis)
 42,195 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Primary hepatic carcinoid and neuroendocrine carcinoma (NEC) are rare tumors. We experienced three carcinoids and two NEC originating in the liver during the past 25 years and attempted to elucidate the clinicopathological and immunohistochemical features of these tumors. The patients had no endocrine symptoms despite two of them having elevated plasma serotonin. Three of the five patients died of the tumor after operation with an average survival time of 20.6 months. All tumors were large (up to 26 cm in diameter), four of them solitary and one multinodular, and were not associated with liver cirrhosis. The carcinoid tumors showed insular, trabecular or glandular arrangement of argyrophilic cells, whereas in the NEC this histological pattern was distorted. Immunohistochemically the tumors showed expression of chromogranin A (all cases), chromogranin B (three cases), pancreastatin and chromostatin (four cases, respectively), prohormone convertase PC3 (three cases), carcinoembryonic antigen (CEA) and CA19-9 (two cases), cytokeratin 56 kDa (three cases), 160 kDa neurofilament (two cases) and neuron-specific enolase (two cases). Serotonin and glucagon were sporadically detected in two tumors. The most useful marker to confirm the diagnosis was chromogranin A, which was cleaved to pancreastatin and chromostatin in the tumor tissue, and was more reliable than other markers of neuroendocrine differentiation.
 ...
PMID:Primary hepatic carcinoid and neuroendocrine carcinoma: clinicopathological and immunohistochemical study of five cases. 1036 51

Primary hepatic neuroendocrine carcinoma is an extremely rare tumor of the liver. We herein describe a case of primary hepatic neuroendocrine carcinoma with lymph node metastases, coexisting with hepatocellular carcinoma, on a background of hepatitis C cirrrhosis, in a 72-year-old man. Abdominal ultrasonography and computed tomography (CT) showed a tumor (3 cm in diameter) in Couinaud's hepatic segment 8 (S8) with regional lymph node metastases. Whole-body CT, magnetic resonance imaging (MRI), and endoscopy did not reveal primary lesions outside the liver. Feridex MRI and [(18)F]fluorodeoxyglucose positron emission tomography were strongly suspicious of malignancy. A limited hepatectomy with regional lymph node dissection was performed. Histopathology, immunohistochemistry, and electron microscopy confirmed a diagnosis of primary neuroendocrine carcinoma on a background of liver cirrhosis. A tumor (1.5 cm in diameter) found in hepatic S5 at operation was also simultaneously resected, and histologically diagnosed to be hepatocellular carcinoma. We also review previous reports of hepatic neuroendocrine carcinoma and discuss hypotheses for the histogenesis of these tumors as well as prognostic implications. Given the background cirrhosis and coexisting hepatocellular carcinoma, we speculate that one of the hepatocellular carcinomas underwent neuroendocrine differentiation.
 ...
PMID:Primary hepatic neuroendocrine carcinoma coexisting with hepatocellular carcinoma in hepatitis C liver cirrhosis: report of a case. 1265 90

The main cause of gastroesophageal variceal bleeding (GEVB) is portal hypertension (PH) due to liver cirrhosis. Here, we report a case of regional PH and refractory GEVB secondary to neuroendocrine carcinoma (NC) in the pancreatic tail. This condition was treated using a pancreatic tail resection, splenectomy, and portal azygous devascularization. Regional PH caused by a pancreatic NC is rare and is usually presented as isolated gastric varices. This case report of regional PH details simultaneous esophageal and gastric varices that were caused by a pancreatic NC, which is a rare occurrence. Therefore, after excluding liver cirrhosis, unusual causes should be considered in cases of refractory GEVB with PH. and IAP.
 ...
PMID:Refractory gastroesophageal variceal bleeding secondary to neuroendocrine carcinoma in the pancreatic tail. 2157 41

The majority of neuroendocrine tumors appear to be sporadic. Neuroendocrine carcinoma (NEC) typically arises in pancreatic, parathyroid and adrenal glands, but rarely arises in salivary glands. NEC of the tonsil is a rare type of tumor and the concurrent presentation of hepatocellular carcinoma (HCC) is considered to be more uncommon. There are few case reports of NEC of the tonsil in the literature and to date no studies have been conducted to establish its optimal management. The current study presents a case of a 72-year-old male who presented with left neck and tonsil tumors. A biopsy from the tonsil revealed a NEC, and computed tomography showed liver cirrhosis, multiple liver cancers and portal vein thrombosis, as well as metastasis to the hilar, abdomen and retroperitoneum. Histological examination of the hepatic revealed primary HCC. To the best of our knowledge, this is a condition that has not previously been reported.
 ...
PMID:Tonsil neuroendocrine carcinoma concurrent with hepatocellular carcinoma: A case report. 2512 Jun 53

Primary hepatic neuroendocrine carcinoma (PHNEC) is rare and its origin is not clearly understood. The coexistence of PHNEC and hepaotcellular carcinoma has been reported in only a few cases. We report a rare case of combined PHNEC and hepaotcellular carcinoma in a patient with liver cirrhosis caused by chronic hepatitis B that resulted in aggressive behavior and poor prognosis.
...
PMID:[A Case of Composite Hepatocellular Carcinoma and Neuroendocrine Carcinoma in a Patient with Liver Cirrhosis Caused by Chronic Hepatitis B]. 2755 19

The composite tumors of the liver are very rare, including the coexistence of HCC (hepatocellular carcinoma) with NEC (neuroendocrine carcinoma). The rare occurrence of these tumors necessitates more reported cases in order to fully understand their clinical characteristics, behaviors and treatments. Herein is described an incidental collision tumor of HCC-NEC, along with a review of the literature focusing on their clinicopathological findings and prognosis. The tumor presented here was found incidentally in the hepatectomy specimen of a 56-year-old man who had undergone liver transplantation for rapidly progressive liver failure because of alcoholic hepatitis and cirrhosis. Imaging and laboratory examinations did not demonstrate tumor-related findings. During macroscopic examination, two sharply defined and distinctive areas (1.7 cm and 0.6 cm dimension respectively) were detected among the cirrhotic nodules. The characteristic histopathological features and immunohistochemical findings allowed a diagnosis of HCC-NEC to be made. There was no evidence of recurrence and metastasis after 10 months following surgery. The present case and review revealed that these tumors are frequently found in older ages and males. Although serum markers are valuable in the discrimination of malignant tumors, their absence cannot completely rule out composite HCC-NEC. Diagnosis requires a comprehensive histopathological evaluation together with immunohistochemistry. The NEC component might influence the treatment strategy and eventually the outcome of the patient. In conclusion, the rare occurrence of HCC-NEC and the lack of diagnostic clinical signs and symptoms do not exclude their consideration in the differential diagnosis of liver tumors, especially in patients with the chronic liver disease.
 ...
PMID:Incidental Collision Tumor of Hepatocellular Carcinoma and Neuroendocrine Carcinoma. 3027 48