Follicular malignant non-Hodgkin's lymphoma with pronounced plasmacytic differentiation: a plasmacytoma-like lymphoma.
A case of follicular centroblastic-centrocytic lymphoma with an unusually pronounced plasmacytic component occurring in the gingiva and cervical lymph nodes of a 74-year-old male patient is described. Immunohistological analysis revealed a monotypic intracytoplasmic immunoglobulin pattern (IgM/lambda). The relation between follicular malignant non-Hodgkin's lymphomas and extramedullary plasmacytome is discussed. In the present case the tumour may represent the development of an autonomous plasma cell clone within a follicular centroblastic-centrocytic lymphoma.
D000368:Aged; D002471:Cell Transformation, Neoplastic; D006801:Humans; D008223:Lymphoma / Q000473:pathology* / Q000532:radiotherapy; D008297:Male; D008339:Mandibular Neoplasms / Q000473:pathology* / Q000532:radiotherapy; D010950:Plasma Cells / Q000473:pathology*; D010954:Plasmacytoma / Q000473:pathology*