title: Disseminated Mycobacterium kansasii infection complicating hairy cell leukemia.
abstract: Mycobacterium kansasii was isolated from the spleen of a patient with ""hairy cell leukemia'' (HCL) who had caseating necrosis in the spleen and in the liver. The disseminated infection in this patient suggests a cellular immunity deficit. Despite intensive investigations, the nature of the cell of origin in HCL remains unknown.
mesh_terms: D000368:Aged; D001853:Bone Marrow / Q000473:pathology; D006801:Humans; D007938:Leukemia / Q000150:complications*; D008099:Liver / Q000473:pathology; D008206:Lymphatic Diseases / Q000150:complications* / Q000473:pathology; D008297:Male; D009161:Mycobacterium / Q000302:isolation & purification*; D009164:Mycobacterium Infections / Q000150:complications*; D013154:Spleen / Q000382:microbiology / Q000473:pathology