title: Follicular lymphoma mimicking progressive transformation of germinal centers: immunologic analysis of a case.
mesh_terms: D002471:Cell Transformation, Neoplastic / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D007150:Immunohistochemistry; D008224:Lymphoma, Follicular / Q000473:pathology*; D008297:Male; D008875:Middle Aged