Abstract
A 36-year-old atomic bomb survivor was admitted to the Toranomon Hospital on January 21, 1975 because of cough and bloody sputum of a half year's duration. White cells were 150,000 per μl with 95 per cent Auer body positive myeloblasts. He had been diagnosed as acute myeloblastic leukemia. A complete remission was achieved by combination chemotherapy with prednisolone, cytosine arabinoside, vincristine and cyclophosphamide.
Since June 1975 cough, bloody sputum and fever reappeared and he was re-admitted on August 26, 1975. Cytology of the sputum was diagnosed to be of Class 5. Chest roentgenogram revealed again irregular reticular shadows. He succumbed to Pseudomonas septicemia on September 1975.
An autopsy revealed acute myeloblastic leukemia with a remarkable myeloblastic infiltration in the mediastinum and around the proximal bronchus. Hemorrhagic pneumonia was noted in both lungs.
