Independent occurrence of hepatocellular and cholangiocellular cancer nodules in the liver.
We treated a patient in whom hepatocellular and cholangiocellular cancer nodules in the liver were of independent occurrence. A 57-year-old Japanese male was admitted with a diagnosis of liver tumour, detected by a scan on a follow-up study of chronic liver disease. Computed tomography and hepatic angiography demonstrated two nodules located on different sites of the right lobe of the liver and which were suggestive of primary liver cancers. He underwent hepatic resection and each tumour was histologically proved to arise independently from hepatocellular and bile duct origins. This may be the first report of patient surgically treated for two different types of carcinoma in the liver.
Salmonella choleraesuis was isolated in pure or mixed bacterial cultures from 153 swine necropsied between Jan 1, 1987 and Dec 31, 1990. Pneumonia was seen in 99 of 109 swine from which this bacterium was isolated in the absence of other pathogenic bacteria. Pneumonia was seen more frequently than hepatitis, splenomegaly, or colitis. Pleuropneumonia that was grossly indistinguishable from the pleuropneumonia associated with Actinobacillus pleuropneumoniae was seen in 29 of 99 swine from which S choleraesuis was the only bacterium isolated.