1294: Atypical CML leukostasis presenting with acute respiratory distress syndrome and acute renal failure

Introduction: Leukostasis is a medical emergency marked by decreased tissue perfusion accompanying capillary obstruction by blasts or large, inelastic immature white cells. It is associated with the hyperleukocytosis of acute myeloid leukemia or with chronic myelogenous leukemia (CML) when blast cou