Abstract
A recurrent spontaneous complete remission of acute hypoplastic leukemia was observed. The remission occurred after a severe infection which was treated with antibiotics. Reports of spontaneous remission of acute leukemia in adults have become increasingly rare, and the remissions themselves are short-lived. Such spontaneous complete remissions are almost always associated with bacterial infections and blood transfusions. Previous cases are summarized, and the pathophysiologic factors are discussed.