A detailed monograph on acute lymphoblastic leukemia, B-cell and T-cell chronic lymphocytic leukemias, prolymphocytic leukemia, hairy cell leukemia, the leukemic phase of non-Hodgkin lymphoma, adult T-cell leukemia-lymphoma, cutaneous T-cell lymphoma, and plasma cell neoplasia. The opening chapter is on immunologic markers. The chapters on the diseases cover, in general, classification, clinical and laboratory features, diagnosis and differential diagnosis, special studies, natural history and prognosis, and treatment.