Recurrent spontaneous haemarthrosis of the knee associated with a synovial and juxta-articular haemangiohamartoma

Abstract

Several spontaneous episodes of haemar- throses of the knee in a young man led to repeated arthroscopic examinations and one arthrotomy of the affected joint until a juxta- articular haemangiohamartoma was indicated by angiogram. Excision of the malformation stopped the bleeding tendency.