Abstract Adult T-cell leukemia/lymphoma (ATL) is a highly aggressive malignancy that arises in proportion of individuals who are long-term carriers human T-lymphotropic virus type 1. The median survival subtypes 8 to 10 months; with chemotherapy-based approaches, overall has remained largely unchanged the ?35 years since ATL was first described. Through use 4 representative case studies, we hig...

The non-Hodgkin's lymphomas are a heterogeneous group of diseases. Cell marker studies over the past 10-15 years have demonstrated that majority adult B cell lymphocyte origin while minority T origin. They vary in their prognosis according to histologic and clinical features.