title: Adult T-cell leukemia-lymphoma-related diseases in the Nagasaki District.
abstract: The clinical, hematological and pathological features of the adult T-cell leukemia (ATL)-related diseases and their cell membrane phenotypes in the Nagasaki district, one of the ATL-endemic areas, were delineated to compare them with those of adult T-cell leukemia-lymphoma (ATLL). In addition, the participation of ATL virus (ATLV) in the ATL-related diseases was investigated on the basis of a study of ATLV-associated antigen (ATLA) and anti-ATLA antibody. ATLA and/or anti-ATLA antibody could be detected in the ATL-related diseases, including persistent T-lymphocytosis with morphologically abnormal T-lymphocytes, T-cell chronic lymphocytic leukemia (T-CLL) of helper T-cells, T-cell malignant lymphoma of the skin, some seronegative helper T-cell malignant lymphomas and monomorphic T-cell leukemia with round nuclei. These results suggest that those cases in the Nagasaki district, though clinically different from each other, might be the same T-lymphoproliferative disease of possible viral etiology associated with ATLV. On the other hand, persistent T-lymphocytosis seems to be an infectious condition caused by ATLV and partly a preclinical stage of ATLL in view of the clinicohematological features.
mesh_terms: D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis; D000954:Antigens, Surface / Q000032:analysis; D000956:Antigens, Viral / Q000032:analysis; D005260:Female; D006801:Humans; D007564:Japan; D007938:Leukemia / Q000276:immunology / Q000473:pathology*; D008218:Lymphocytosis / Q000276:immunology / Q000473:pathology*; D008223:Lymphoma / Q000276:immunology / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012190:Retroviridae / Q000276:immunology; D012878:Skin Neoplasms / Q000276:immunology / Q000473:pathology*; D013601:T-Lymphocytes / Q000276:immunology / Q000473:pathology
chemical_list: D000914:Antibodies, Viral; D000954:Antigens, Surface; D000956:Antigens, Viral