At the upper right is a well-circumscribed neoplasm that is arising in liver. This is an hepatic adenoma.
右上方为源于肝脏的境界分明的肿瘤。是肝腺瘤。
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Conclusion: Hepatic follicular dentritic cell sarcoma is a very rare neoplasm of liver and its diagnosis and differential diagnosis should mainly rely on the immunohistochemical findings.