he was diagnosed as having et because of marked thrombocytosis ( 205.5 x 10 ( 10 ) /1 ) , absence of erythrocytosis , absence of splenomegaly , normal karyotype and no increment of blasts in the bone marrow , and normal levels of neutrophil alkaline phosphatase , vitamin b12 and folate .
C0040028
et
C0836924
thrombocytosis