[Development of tumors as the 1st manifestation of acute leukemia]

The acute Myeloblastosis in adults which forms tumours, is one of the very rare forms of this disease. The unusual development of the disease, the last appearance of characteristic symptoms and difficulties in forming a histological diagnosis usually makes it very difficult to diagnose this disease in sufficient time. On the basis of a 44 year old patient's course of disease, the clinical difficulties and the pathological-anatomical diagnosis of an acute Myeloblastosis that formed tumours, are discussed.