title: Immunological characterization of an ocular adnexal lymphoid T tumor by monoclonal antibodies.
abstract: The phenotype of a lymphoid orbital tumor is described, using monoclonal antibodies of the OKT series. The majority of tumor cells lacked surface immunoglobulins and bound OKT3, hence they arose from the T lineage. These cells belonged to the mature helper T cell subpopulation since a great proportion was recognized by OKT4 antibody. In contrast, a decrease in the peripheral blood OKT4+ pool was observed. The results demonstrate the importance of using a panel of markers, such as monoclonal antibodies, for the identification of cell derivation of lymphomas.
mesh_terms: D000368:Aged; D000911:Antibodies, Monoclonal / Q000276:immunology*; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D008223:Lymphoma / Q000276:immunology*; D009918:Orbital Neoplasms / Q000276:immunology*; D010641:Phenotype; D011947:Receptors, Antigen, B-Cell / Q000032:analysis; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D011947:Receptors, Antigen, B-Cell