Abstract

A 61-year old woman presented to us with fever, weakness and ecchymotic patches for one year. She had leucocytosis, anemia and thrombocytopenia. Peripheral blood smear showed 62% neutrophils, 32% myelocytes and metamyelocytes, 2% promyelocytes, 1% blasts, 2% monocytes, 1% lymphocytes but no basophils and marked dyspoiesis. Bone marrow picture was essentially the same. A diagnosis of atypical chronic myeloid leukemia was suggested. The correct diagnosis of chronic myeloid leukemia-accelerated phase was, however, made on cytogenetic analysis which showed Philadelphia chromosome (Ph) and isochromosome 17q [i(17q)]. This case describes a rare and diagnostically difficult presentation of CML arising out of a combination of prominent dyspoiesis and near absence of peripheral blood basophils.

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