title: Acute myelogenous leukemia with eosinophilic differentiation and trisomy-1.
abstract: A 50-year-old woman presented with anemia and eosinophilia. Her bone marrow biopsy, peripheral blood, and clinical features were consistent with a diagnosis of an evolving acute myelogenous leukemia. Striking dysplastic eosinophilic differentiation associated with trisomy-1 was evident, and eosinophil granule major basic protein was detected in involved tissue. Trisomy-1 has not been previously reported in association with acute myelogenous leukemia showing eosinophilic differentiation. Intensive cytotoxic chemotherapy produced a short-lived clinical and cytogenetic remission. At autopsy multiple tumor nodules composed of dysplastic eosinophil precursors and myeloblasts were evident in multiple organs.
mesh_terms: D001853:Bone Marrow / Q000473:pathology; D002471:Cell Transformation, Neoplastic / Q000473:pathology*; D002878:Chromosomes, Human, Pair 1; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D015472:Leukemia, Eosinophilic, Acute / Q000235:genetics / Q000473:pathology*; D015470:Leukemia, Myeloid, Acute / Q000235:genetics / Q000473:pathology*; D008875:Middle Aged; D014314:Trisomy