Isolated Isochromosome 17q in Myelodysplastic Syndromes with Pure Red Cell Aplasia and Basophilia

概要

論文の詳細を見る
Myelodysplastic syndromes (MDS) with pure red cell aplasia (PRCA) have been shown to be a rare form of MDS. A 35-year-old man presented with pancytopenia: hemoglobin 59 g/L, reticulocytes 2×109/L, platelets 33×109/L, and leukocytes 1.8×109/L with 1% blasts. Bone marrow was hypercellular with 50.4% myeloid cells, 0.0% erythroblasts, 25.4% basophils, and 5.6% myeloblasts. Dysplastic changes including pseudo-Pelger-Huët anomaly of neutrophils and mononuclear micromegakaryocytes were found. Immunohistochemistry with glycophorin C confirmed erythroid aplasia. Cytogenetic analysis showed 46,XY,i(17)(q10)[18]/47,XY,+8[2]. Considering two reported cases, these findings indicate that isolated i(17q) may be implicated in the pathogenesis of MDS with PRCA as a recurrent cytogenetic aberration.