title: Immunohistological study of two malignant lymphomas found as testicular tumors.
abstract: Immunohistological studies of two testicular lymphomas are reported. In the first case, lymphoma cells bear T-cell markers such as Leu-4 and Leu-3a, while they do not react with antibodies against B-cell markers such as anti-Leu-14. In the second case, lymphoma cells do not react with anti-T or anti-B cell antibodies, but react with antibodies against B-4, OKT9, and C 13 (anti-HLA-DR). Thus, it is shown that the first case is a lymphoma of helper/inducer T-cell origin and the second case is a pre-B-cell or pre-pre-B-cell lymphoma.
mesh_terms: D000368:Aged; D001402:B-Lymphocytes / Q000276:immunology; D006801:Humans; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000473:pathology*; D008297:Male; D013194:Staining and Labeling; D013601:T-Lymphocytes / Q000276:immunology; D013736:Testicular Neoplasms / Q000473:pathology*