Interlaboratory Reliability of Hybrid Capture 2

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Abstract
Hepatocyte paraffin 1 (Hep Par 1), a monoclonal antibody recognizing an antigen thought to be specific for hepatocyte mitochondria, is considered the most specific and sensitive marker of normal and neoplastic hepatocytes and has been used in diagnosing hepatocellular carcinomas. Recent data suggest that the specificity of Hep Par 1 for hepatic neoplasms is not absolute; nonhepatic neoplasms might express this marker.