the rare presence of the ph1 chromosome in chronic myeloproliferative disorders other than chronic granulocytic leukemia ( cgl ) , i.e . polycythemia vera ( pv ) , myeloid metaplasia with myelofibrosis ( mmm ) and hemorrhagic thrombocytopenia ( ht ) raised the question whether or not the ph1 chromosome is peculiar to cgl .
C0023470
granulocytic leukemia
C0023473
cgl