[Acute myelomonocytic leukemia with eosinophils. Apropos of a case with a cytogenetic analysis and nosologic...

Report of overwhelming leukemia with meningeal involvement in a 13-year-old. Cytologic and ultrastructural examinations showed features of myelomonocytic leukemia with abnormal eosinophils. The karyotype showed pericentric inversion of chromosome 16. Although these findings establish the diagnosis of acute myelomonocytic leukemia with abnormal eosinophils (M4Eo), this case ran an exceptionally severe course and exhibited some unusual cytologic features.