title: [Immunohistochemical study of primary gastrointestinal malignant lymphoma].
abstract: 63 cases of primary gastrointestinal non-Hodgkin's malignant lymphoma (ML), including 18 cases of gastric ML, 25 cases of small intestinal ML, 12 cases of ileocaecal ML and 8 cases of large intestinal ML, were studied. Small non-cleaved cell lymphomas were most common, accounting for 25.4% which was more common in the bowel than in the stomach. In 41 cases, a panel of monoclonal antibodies including L26, UCHL-1, Leu22 and Mac387 were used on paraffin section. The result of the staining was satisfactory in 37 cases. There were 35 cases (94.6%) exhibiting B-cell phenotype and 2 cases (5.4%) exhibiting T-cell phenotype. No histiocytic type was detected. The results of this and previous studies confirm the fact that most gastrointestinal lymphomas are B-cell lymphomas.
authors.affiliation: Department of Pathology, Sun Yat-sen University of Medical Sciences.
authors.forename: M H
authors.initials: MH
authors.lastname: Zhou
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007078:Ileal Neoplasms / Q000473:pathology*; D007150:Immunohistochemistry; D016130:Immunophenotyping; D008228:Lymphoma, Non-Hodgkin / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000473:pathology*