title: [Myelomonocytic leukemia: clinical, cytological, and cytogenetic studies of acute, subacute, and chronic forms (author's transl)].
abstract: 44 patients suffering from myelomonocytic leukemia (MML) have been observed over the last four years. They have been subclassified in acute myelomonocytic and acute monoblastic leukemias (AMML, n = 12; AMoL, n = 10), subacute myelomonocytic leukemias (SMML, n = 13), and chronic myelomonocytic leukemias (CMML, n = 9) on the basis of bone marrow cytology(blast and promonocyte counts, maturation of granulopoesis) and cytochemical findings (peroxydase and unspecific esterase reaction). This subclassification has been proved to be of prognostic relevance by its good correlation with the mean survival times (AMML : 4.5 months, AMoL : 2.4 months, SMML : 8 months, CMML : 18 months). The acute forms have been treated in general with combined cytostatic chemotherapy, whereas SMML and CMML have been treated this way only in case of progression to an acute phase. These progressions to an AMML have been observed more often and earlier in subacute forms than in chronic forms. The diagnosis of SMML and CMML is supported by the finding of sea-blue histiocytes in the bone marrow, increased lysozyme levels in serum and urine and by the absence of the Philadelphia-Chromosome.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D001856:Bone Marrow Examination; D002908:Chronic Disease; D005260:Female; D006644:Histiocytes; D006801:Humans; D007948:Leukemia, Monocytic, Acute / Q000175:diagnosis; D007951:Leukemia, Myeloid / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009113:Muramidase / Q000097:blood / Q000652:urine; D011379:Prognosis
chemical_list: D009113:Muramidase
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vernacular_title: Myelomonozytäre Leukämie: Klinische, zytologische und zytogenetische Studien bei akuten, subakuten und chronischen Verlaufsformen.