Medullary carcinoma hepatocellular

Gastrointestinal, pancreas, biliary, lung, transitional cell, sweat glands, mucosal squamous cell, mucinous carcinomas of female GU tract, medullary carcinoma of thyroid Breast, squamous cell, endometrioid, Brenner tumor Renal cell, hepatocellular, prostate, follicular thyroid, adrenal cortical, serous carcinomas of female GU tract, embryonal, yolk sac, mesothelioma... 

The overwhelming majority of neuroendocrine neoplasms occurring in the liver are metastatic. Well to moderately differentiated neuroendocrine neoplasms (e.g., carcinoids, pancreatic endocrine neoplasms, medullary thyroid carcinomas) may mimic primary hepatocellular processes, and thus immunohistochemistry with antibodies for chromogranin, synaptophysin, and CD56 can be extremely helpful, as discussed earlier. They may also be positive for MOC-31 but not for Hep Par-1. In contrast, HCC may occasionally show focal neuroendocrine differentiation and may stain for synaptophysin. 

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