Non-hodgkin malignant lymphoma with special reference to desmosome-like junctions.
Seventy-nine cases of non-Hodgkin malignant lymphoma were light and electron microscopically evaluated with special reference to intercellular correlationship comparing with non-neoplastic lymph nodal cells and cultured B cells. Reticulum cells and histiocytes are regarded as an independent cell unit. Reticulum cell sarcoma shows a fibrosarcomatous proliferation with abundant reticulin fibers, while histiocytic sarcoma is confined to a pleomorphic neoplasm with valid phagocytization. Lymphoid cells are divided into large, intermediate and small lymphocytes. Under inflammation and cultivation they, especially intermediate and large, preferentially proliferated clustering in a reticular fashion, which are designated as reticular lymphocytes, in contrast with nonreticular lymphocytes individually separated. The desmosome-like junctions are found among reticular lymphocytes not only in but also outside germinal centers as well as in vessels and among cultured B cells. Lymphocytic sarcomas, either nodular or diffuse, are classified into reticular and nonreticular types in association with their cellular sizes. The desmosome-like junctions are predisposedly disclosed in reticular lymphoma irrespective of proliferating patterns, nodular or diffuse, and of membrane character, B or T. And the junctions are not regarded as a hallmark for follicular or nodular lymphomas of germinal center cell origin. ACTA PATHOL. JPN. 30: 195 approximately 217, 1980.
D001402:B-Lymphocytes / Q000166:cytology; D003896:Desmosomes; D006644:Histiocytes / Q000473:pathology; D006801:Humans; D008198:Lymph Nodes / Q000648:ultrastructure*; D008206:Lymphatic Diseases / Q000473:pathology; D008223:Lymphoma / Q000648:ultrastructure*; D016403:Lymphoma, Large B-Cell, Diffuse / Q000648:ultrastructure; D008228:Lymphoma, Non-Hodgkin / Q000648:ultrastructure; D013601:T-Lymphocytes / Q000166:cytology