title: Cytogenetics might elucidate the etiology of acute transformation of chronic myeloproliferative syndromes without a Philadelphia chromosome. A brief report from a multicenter study by the Group Français de Cytogénétique Hématologique.
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015337:Multicenter Studies as Topic; D009196:Myeloproliferative Disorders / Q000235:genetics*; D010677:Philadelphia Chromosome