A case of pseudolymphoma of the liver

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Abstract
A case of pseudolymphoma (reactive lymphoid hyperplasia) of the liver in a 66 year old female is presented. A tumor‐like lesion was incidentally discovered in the liver during clinical follow up of diabetes mellitus. The hepatic lesion was resected because malignant lymphoma was suspected after a needle biopsy. Grossly, the lesion was well‐deflned and measured 1.0 × 1.5 × 1.0 cm. Microscoplcally, the lesion consisted of hyperplastic lymphoid follicles with distinctive germinal centers and interfollicular areas consisting of mature lymphocytes and plasma cells. An immunohistologlcal study revealed that the lymphoid cells of the lesion were polyclonal in immunophenotypes. These histological and immunohistochemical findings strongly suggested a pseudolymphoma and not hepatic inflammatory pseudotumor. Thls case was diagnosed as pseudolymphoma of liver. Only a few cases of hepatic pseudolymphoma have so far been reported In the English literature.