PT - JOURNAL ARTICLE AU - Vaishnavi Divya Nagarajan AU - Asha Shenoi AU - Lucy Burgess AU - Vlad C Radulescu TI - Spontaneous pyohaemothorax in a teenager with von Willebrand disease: a case report and review of literature AID - 10.1136/bcr-2021-241613 DP - 2021 Aug 01 TA - BMJ Case Reports PG - e241613 VI - 14 IP - 8 4099 - http://casereports.bmj.com/content/14/8/e241613.short 4100 - http://casereports.bmj.com/content/14/8/e241613.full SO - BMJ Case Reports2021 Aug 01; 14 AB - An 18-year-old man with a history of type 3 von Willebrand disease (VWD) presented with a spontaneous pyohaemothorax. Type 3 VWD may present with both mucocutaneous and deep-seated bleeds, such as visceral haemorrhages, intracranial bleeds and haemarthrosis. There have been very few cases described in children of spontaneous pyohaemothorax. Management of this patient was challenging due to risks of bleeding following surgical drainage, requiring constant replacement with von Willebrand factor concentrate, while monitoring factor VIII levels to balance the risks of thrombosis.