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Med Clin (Barc). 1989 Apr 15;92(14):521-5.

[Primary myelofibrosis: description of a series of 53 patients].

[Article in Spanish]


The clinical and hematological profile of 53 patients in whom primary myelofibrosis (PMF) had been diagnosed during the last 15 years was evaluated. Median age was 64 years (range 17-86). Thirty-five patients were males and 18 females. The most frequent symptoms were associated with the hypermetabolic state, anemia and splenomegaly. The latter was found in 96% of patients, while 83% had hepatomegaly and 9% had lymphadenopathy. Thirty-three patients had anemia at the time of diagnosis. The leukocyte and platelet counts were normal or moderately high in most cases. Myelemia was found in 83% of patients, with circulating erythroblasts in 72%. The most common biochemical abnormalities were the increased serum LDH (84%) and hypocholesterolemia (62%). Bone marrow aspirate was not analyzable in most cases. Bone marrow biopsy showed myelofibrosis in hypercellular phase in 22 patients, myelofibrosis without osteosclerosis in 17, and myelofibrosis with osteosclerosis in 14. The median survival of the series was 3.8 years; 34 patients had died at the time of the analysis. The major causes of death were infection, cardiovascular complications and hemorrhage. In 4 patients the evolution from PMF to acute leukemia was observed.

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