[Brief case reports illustrate various initial courses in acute promyelocytic leukemia]

Authors present cases which illustrate a various initial symptoms and courses of patients between the first symptoms and the diagnosis of acute promyelocytic leukemia. Symptoms indicated possible serious hematological diseases are well-known: unusual bleeding, recurrent infections or infections not responded to antibiotics, fatigue, anemia symptoms. The disease progression was sometimes very rapid, however, in certain patients the symptoms were disappreciated or even minimized and the approaches were not adequate to risks resulted from newly diagnosed acute promyelocytic leukemia.