Delayed hypersensitivity reactions in patients with acute leukemias and blastic crisis of chronic granulocytic leukemia.

Delayed hypersensitivity reactions were studied in 34 patients with acute leukemias and 13 patients in blastic crisis of chronic granulocytic leukemia during the course of the disease. All patients were skin tested with PPD, Candida antigen, SK/SD and DNCB. A positive correlation existed in majority of patients between the response chemotherapy and delayed hypersensitivity reactions in the tested patients.