A patient with bullous pemphigoid presenting with haemorrhagic oral erosions, oral haematoma and haemoptysis.

We present a case of a patient with bullous pemphigoid presenting with acquired haemophilia A. This is characterized by formation of antibodies or inhibitors against coagulation Factor VIII, leading to a prolonged activated partial thromboplastin time with normal prothrombin time and international normalized ratio. Our case emphasizes the need for increased awareness among dermatologists of this uncommon and potentially life-threatening condition. Click here for the corresponding questions to this CME article.