Pulmonary haemorrhage and extensive arterial thrombosis with anabolic steroid abuse.

Anabolic-androgenic steroids (AASs) are commonly implicated in thromboembolic events but rarely cause diffuse alveolar haemorrhage. We report the case of a Caucasian man in his late 40s who was consuming supratherapeutic doses of AAS and presented with shortness of breath and haemoptysis. Chest imaging showed bilateral patchy infiltrates in the lungs with diffuse blood throughout the airways on bronchoscopy.