Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0019204 (hepatocellular carcinoma)
 71,386 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Citrullinemia is a metabolic disorder characterized by elevated plasma concentrations of citrulline and ammonia. Adult-onset citrullinemia (type II, CTLN2) has been attributed to citrin deficiency caused by mutations in the SLC25A13 gene. CTLN2 is associated with a high incidence of hepatocellular carcinoma (HCC) in Japanese. We report a 48-year-old Taiwanese man with citrullinemia, who was in good health until the age of 34 when he had repeated episodes of consciousness disturbance. Hyperammonia (201 micromol/L) was found during an episode of coma. Liver function and electrolyte levels were normal at that time. Serologic markers of viral hepatitis B and C were negative. Analysis of genomic DNA extracted from peripheral blood leukocytes showed homozygous 851del4 mutation in exon 9 of the SLC25A13 gene on chromosome 7q21.3. Fourteen years after disease onset, at the age of 48, he was admitted due to an episode of coma. Abdominal sonography and computed tomography showed a 2.5 cm tumor in the left lobe of the liver, without evidence of liver cirrhosis. Wedge resection of the tumor was performed and grade 2 HCC was diagnosed. The nontumor part of the resected specimen showed chronic persistent hepatitis with moderate steatosis. The results in this case support that both citrin deficiency and steatohepatitis may contribute to hepatocarcinogenesis.
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PMID:Homozygous SLC25A13 mutation in a Taiwanese patient with adult-onset citrullinemia complicated with steatosis and hepatocellular carcinoma. 1700 Apr 60

To analyze the clinical features of hepatocellular carcinoma (HCC) in patients with signs and symptoms of nervous system involvement as the initial presentation. Over a period of 11 years (January 1993 to December 2003), 15,008 HCC patients were identified at the Chang Gung Memorial Hospital in Kaohsiung, Taiwan. Amongst them, 42 cases had nervous system involvement, of which six had nervous system involvement as their initial presentation. These six cases were enrolled in this study and their clinical and laboratory data were analyzed. The clinical features of the other 36 HCC cases with nervous system involvement were also analyzed for comparison. The six cases were all males, aged 36-68 years old. The involved parts of the nervous system were the cerebellar hemisphere (one), the frontal lobe (one), the sphenoid sinus, sellar turcica, and cavernous sinus (one), the cervical spine (one), and the thoracic spine (two). Their corresponding neurologic presentations were back pain, headache, consciousness disturbance, visual disturbance, and limb weakness. Whilst three out of six patients presenting with nervous system manifestations were found to have concurrent systemic metastases in other expected sites (lung, bone), three had isolated nervous system involvement even after extensive work up. The associated medical conditions of the six cases included hepatitis B (three), hepatitis C (one), liver cirrhosis (two), portal vein thrombosis (three), and diabetes mellitus (two). All the six died within 9 months after the detection of nervous system involvement. The prevalence of nervous system involvement in HCC patients is 0.28% (42/15,088), with 0.04% (6/15,088) having this as their initial presentation. The prognosis of HCC with nervous system involvement is grave. Their clinical and laboratory data are not unique but the diagnosis could only be confirmed by hepatic and nervous system imaging studies, histopathologic examination, and serum alpha-fetoprotein detection. This consideration should be emphasized especially in areas that are hyperendemic for HCC and if the original focus of metastatic lesion is obscure.
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PMID:Hepatocellular carcinoma presenting as nervous system involvement. 1738 89

Intracranial metastasis of hepatocellular carcinoma (HCC) is rare, but has an extremely poor prognosis. We report a case with successful surgical removal of intracranial metastasis of HCC. A 32-year-old man was admitted to our hospital with severe vomiting. He had been followed for liver cirrhosis due to hepatitis B virus infection and received a right hepatic trisectionectomy for HCC 1 year earlier. For the recurrence of HCC, sorafenib had been administered 6 months before admission. On admission, he exhibited consciousness disturbance, which gradually worsened. Two days later, both computed tomography and magnetic resonance imaging revealed an intra-axial tumor with perifocal edema and hemorrhage in the left frontal lobe. The tumor was successfully removed by craniotomy and pathological examination revealed that it was composed of moderately differentiated HCC cells. The day after surgical resection of the tumor, his consciousness returned to normal. Subsequently, he was treated with hepatic arterial infusion chemotherapy with 5-fluorouracil and cisplatin using an implanted port-catheter system. Surgical resection of intracranial metastasis of HCC would be important and meaningful in some cases.
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PMID:Successful resection of intracranial metastasis of hepatocellular carcinoma. 2362 20