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Primary gastrointestinal malignant lymphomas. A morphologic and immunohistochemical study
Author(s) -
Papadimitriou Constantine S.,
Papacharalampous Nicolaos X.,
Kittas Christos
Publication year - 1985
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(19850215)55:4<870::aid-cncr2820550428>3.0.co;2-8
Subject(s) - pathology , malignancy , immunoglobulin light chain , lymphoma , immunohistochemistry , medicine , histiocyte , malignant lymphoma , antibody , immunology
Thirty‐nine primary gastric and 22 intestinal malignant lymphomas collected from 1969 to 1980 have been studied morphologically and immunohistochemically. Eighteen of the 61 gastrointestinal lymphomas were of low‐grade malignancy (9 lymphoplasmacytoid/cytic, 3 centrocytic, 6 centroblastic/centrocytic) and 43 were of high‐grade malignancy (14 centroblastic, 7 lymphohlastic, 22 immunoblastic malignant lymphomas) according to the Kiel classification. The peroxidase‐antiperoxidase (PAP) method was used in 53 of the 61 cases. Twenty‐seven of them revealed a monoclonal positivity for intracytoplasmic IgS: kappa light chains in 18 and lambda light chains in 7 cases. Two cases represented alpha chain disease, revealing only a heavy chain positivity. The most frequent staining pattern of the lymphoma cells was that of kappa/mu. Cells with a mixed centrocytic and plasma cell configuration (centrocytoid plasma cells) proved to be positive for intracytoplasmic IgS. Lymphoma cells of all tested cases proved to be negative for all histiocytic markers. Histologically and immunohistochemically, the Greek cases of primary gastrointestinal malignant lymphomas seem to resemble “western” type lymphomas.