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Disseminated Mycobacterium kansasii infection with pulmonary alveolar proteinosis in a patient with chronic myelogenous leukemia

A 64‐year‐old woman with chronic myelogenous leukemia (CML) was admitted due to prolonged fever and lung infiltrates. An open lung biopsy was required to make the diagnosis of pulmonary alveolar proteinosis (PAP) and infection with Mycobacterium kansasii. She was treated successfully with combined antimycobacterial therapy for 14 months. However, the leukemia progressed and the patient developed recurrent bilateral lung infiltrates. Blood and bronchoalveolar fluid cultures yielded growth of Acinetobacter. She died shortly thereafter due to septic shock. The relationship between M. kansasii infection, PAP, and abnormal host defense in CML is discussed. Am. J. Hematol. 74:221–223, 2003. © 2003 Wiley‐Liss, Inc.