血友病性关节病伴假骨肿瘤的影像学表现报道较少[1]，我们遇到有完整资料的1例。病例男，38岁。因反复出现皮肤青紫，深部软组织血肿20余年，左踝关节肿痛1月入院。10年前确诊血友病甲。体检：左踝关节红肿，有压痛。实验室检查：凝血时间17′30″，“APTT”延长，因子Ⅷ凝血活 There are few reports on the imaging findings of hemophilia arthropathy with pseudobulbar tumors [1]. We encountered one case with complete information. Male, 38 years old. Because of repeated skin bruising, deep soft tissue hematoma more than 20 years, left ankle pain and swelling hospitalized in January. Hemophilia A was diagnosed 10 years ago. Physical examination: left ankle swelling, tenderness. Laboratory tests: clotting time 17’30 “,” APTT "prolonged factor â ... ¡blood coagulation