title: [Morphological study of 4 cases of T lymphoma].
abstract: Modern physiopathological studies of the lymphoid system have enabled accurate immunological identification of the different B lymphopathies. Concurrently, the categorization of T proliferations is evolving. In addition to the morphologically well known categories of T lymphomas, three different histological entities are at present termed T lymphomas by anglo-saxon authors: lymphoma with pleiomorphic cytology, or large cell lymphoma, whose identification seems to be the most difficult; Pinkus lymphoma, with subcutaneous clinical localizations which differ from the initial sites of lymphomas, composed of lymphoid cells whose morphology is very characteristic; Lennert lymphoma, whose precise nature is still under debate, but that has been immunologically identified as a T neoplasm by some American authors. We report four observations that exemplify the complex identification of these lymphomas. One case is a Lennert lymphoma which developed into T immunoblastic lymphoma rising the problem of the relationships between these two diseases. The link between these diverse histological pictures is the T immunological identification of the proliferation for which the routine use of monoclonal antibodies should prove helpful.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008223:Lymphoma / Q000276:immunology / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D013601:T-Lymphocytes / Q000276:immunology
vernacular_title: Etude morphologique de quatre cas de lymphome T.