Allergic bronchopulmonary aspergillosis causing total lung collapse.

Allergic bronchopulmonary aspergillosis (ABPA) is commonly associated with underlying respiratory disease. The authors present the case of a 68-year-old non-smoker, admitted with a possible acute coronary syndrome, who deteriorated in hospital secondary to total left lung collapse as demonstrated on chest radiograph. There was no significant history of respiratory disease. Histology from bronchoscopy and lavage indicated lung carcinoma; however biopsy and CT staging demonstrated APBA. This is the first report of lung collapse secondary to ABPA in which initial bronchoscopy suggested underlying carcinoma.