A 62-year-old male experienced anti-MDA5 dermatomyositis with lung involvement, treated with immunosuppressive therapy leading to chronic cavitary pulmonary aspergillosis in left upper lobe. Patient's history was complicated by complete left pneumothorax due to alveolar-pleural fistula occurring because of the rupture of the pulmonary cavitation. Left lung failed to re-expand despite a four-week period of pleural drainage. In addition to antifungal therapy, patient received endobronchial valve therapy in the anterior segmental bronchus of the left upper lobe leading to air leak cessation, left lung re expansion and aspergillosis cavitation closure.
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