title: Pseudotumour of the lung caused by infection with Bacillus sphaericus.
abstract: A patient is described who suffered from severe chronic asthma complicated by repeated chest infections. She developed a large gelatinous pseudotumour of the lung which was found to be caused by Bacillus sphaericus.
mesh_terms: D000328:Adult; D001407:Bacillus / Q000302:isolation & purification; D001424:Bacterial Infections / Q000150:complications* / Q000382:microbiology / Q000473:pathology; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000209:etiology* / Q000382:microbiology / Q000473:pathology