[Bilateral simultaneous spontaneous pneumothoraces associated with Alport's syndrome].

A 45-year-old man with Alport's syndrome presented with chest pain and dry coughing. A chest roentgenogram showed bilateral simultaneous spontaneous pneumothoraces. Possible causes such as pulmonary bullae were not detected. A partial defect in type IV collagen, which is involved in repair of the basement membrane, may have played a role in the etiology of pneumothoraces in this patient.