Haemangioma of the knee joint.
D000293:Adolescent; D000792:Angiography; D001174:Arthrodesis; D001859:Bone Neoplasms / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D006391:Hemangioma / Q000000981:diagnostic imaging / Q000601:surgery*; D006392:Hemangioma, Cavernous / Q000601:surgery; D006801:Humans; D007223:Infant; D007717:Knee / Q000000981:diagnostic imaging; D007719:Knee Joint; D000074402:Synovectomy