[Acute erythremic myelosis as a terminal phase of polycythemia rubra vera].

A male, 66, developed Acute Erythremic Myelosis in the course of Polycythemia Vera. The time of onset of Polycythemia Vera could not be determined, his first symptoms being vascular complications. He received treatment with Phlebotomies and Myleran. Five years later he became ill with malaise, fever, splenomegaly; in the peripheral blood profound pancytopoenia with immature, bizzare erythro-and megaloblasts have been found. Bone marrow was full of atypical megaloblasts, some of them having two or more nuclei. The number of mitoses was increased. Chromosomal abnormalities consisted of ane-uploid cells, chromatid breakes and translocations (G to A-1). The therapy with B12, Cytosin-Arabinoside, Oncovin and Blood transfusions was unsuccessful. He died 21 days after being admitted to the Hospital.