title: Immunohistochemical characteristics of monocytoid B cell lymphoma, mantle zone lymphoma, small lymphocytic lymphoma (or B chronic lymphocytic leukemia), and hairy cell leukemia.
abstract: Biopsy specimens obtained from 2 patients with monocytoid B cell lymphoma, 7 with mantle zone lymphoma, 7 with small lymphocytic lymphoma or B chronic lymphocytic leukemia, and 6 with hairy cell leukemia were investigated using an immunohistochemical method to detect their immunophenotypic characteristics. Periodate-lysine-paraformaldehyde-fixed frozen biopsies from the lymph node, peripheral blood, bone marrow, spleen, tonsil, lung, and stomach were studied. Monocytoid B cell lymphoma exhibited the immunophenotype of surface(s) IgD-/DRC-1-/Leu-1(CD5)-/Leu-M5(CD11c)-, +/- on the neoplastic cells or neoplastic lesions, mantle zone lymphoma exhibited that of sIgD+/DRC-1++/Leu-1-,+/Leu-M5-, small lymphocytic lymphoma or B chronic lymphocytic leukemia that of Leu-1+/sIgD-,+sIgD-,+/DRC-1- > +Leu-M5-, and hairy cell leukemia that of Leu-M5++/sIgD- >> +/Leu-1- >> +/DRC-1-. We therefore suggest that these four types of lymphomas can be differentiated by a combination of anti-sIgD, DRC-1, Leu-1, and Leu-M5 monoclonal antibodies based on their immunophenotypic characteristics.
authors.affiliation: Section of Clinical Laboratory, Hospital, National Institute of Radiological Sciences, Chiba, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Oka
authors.forename: N
authors.initials: N
authors.lastname: Mori
authors.forename: Y
authors.initials: Y
authors.lastname: Yatabe
mesh_terms: D001853:Bone Marrow / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D016130:Immunophenotyping; D007943:Leukemia, Hairy Cell / Q000276:immunology / Q000473:pathology*; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000276:immunology / Q000473:pathology*; D008168:Lung / Q000473:pathology; D008198:Lymph Nodes / Q000473:pathology; D016393:Lymphoma, B-Cell / Q000276:immunology / Q000473:pathology*; D014066:Palatine Tonsil / Q000473:pathology; D013154:Spleen / Q000473:pathology; D013270:Stomach / Q000473:pathology