Gastric schwannoma with adjacent external progression harbored aberrant NF2 gene.

Gastric schwannomas are rare benign mesenchymal tumors. We describe a schwannoma of gastric origin with adjacent external progression. Sections showed a spindle cell tumor arranged in interlaced bundles and fascicles that was S-100 and CD34 positive but c-KIT protein negative.

Prognostic indicators estimated by (99m)Tc-GSA in acute liver damage.

A prognostic estimation formula of acute liver damage was evaluated by using clinical data and technetium-99m-diethylenetriaminepentaacetic acid-galactosyl-human serum albumin ((99m)Tc-GSA) scintigraphy in order to determine operability for orthotopic liver transplantation (OLT). Forty-six patients hospitalized for acute liver damage were divided into survival (n=35) and non-survival (n=11) groups. Univariate and multivariate analyses were used to identify significant factors that affected prognosis.

Clinicopathological study of hepatic nodular lesions in patients with alcoholic liver cirrhosis.

Background: There have been few reports concerning the occurrence of hepatocellular carcinoma (HCC) in heavy drinkers not sensitized by hepatitis B virus (HBV) or hepatitis C virus. With current advances in diagnostic methods, hypervascular tumors are often discovered on imaging findings in alcoholics, and it is important to differentiate them from HCCs.

Methods: The subjects were 16 alcoholics who had hepatic nodules and were hepatitis B surface antigen negative and hepatitis C virus antibody negative and were classified into two groups: (1) the HBV group with hepatitis B surface antibody and/or hepatitis B core antibody and (2) the alcoholic group without these antibodies.