RT Journal Article SR Electronic T1 Non-tuberculous mycobacterial lung infection complicated by chronic necrotising pulmonary aspergillosis JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 717 OP 719 DO 10.1136/thorax.55.8.717 VO 55 IS 8 A1 I Hafeez A1 M F Muers A1 S A Murphy A1 E G V Evans A1 R C Barton A1 P McWhinney YR 2000 UL http://thorax.bmj.com/content/55/8/717.abstract AB We report four cases of pulmonary mycobacterial disease (three due to Mycobacterium malmoense and one to Myco- bacterium avium intracellulare) complicated by the development of chronic necrotising pulmonary aspergillosis. Difficulties with treatment and the potential benefits of steroids are discussed.