TY - JOUR T1 - Severe acquired haemophilia associated with asymptomatic SARS-CoV-2 infection JF - BMJ Case Reports JO - BMJ Case Reports DO - 10.1136/bcr-2021-242884 VL - 14 IS - 7 SP - e242884 AU - Kevin Y Wang AU - Pratik Shah AU - Dennis T Roarke AU - Shams A Shakil Y1 - 2021/07/01 UR - http://casereports.bmj.com/content/14/7/e242884.abstract N2 - A 65-year-old man presented with symptoms of severe subcutaneous bleeding in his arm, which led to compartment syndrome requiring fasciotomy and massive blood transfusion protocol. Medical history was significant for history of autoimmune thyroid disease. Workup revealed elevated partial thromboplastin time, decreased factor VIII levels and elevated factor VIII inhibitor levels. He was worked up for causes of acquired haemophilia A and was found to have an elevated SARS-CoV-2 antibody level. Given his negative workup for other secondary aetiologies, we suspect that the cause of his haemophilia A was from his SARS-CoV-2 infection, which has been observed previously in various case reports. ER -