title: Synovial mass lesions in the anteroposterior projection of the ankle joint.
mesh_terms: D000842:Ankle / Q000000981:diagnostic imaging* / Q000473:pathology; D001466:Barium Sulfate; D006395:Hemarthrosis / Q000000981:diagnostic imaging; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D013583:Synovial Membrane / Q000000981:diagnostic imaging* / Q000473:pathology; D013628:Talus / Q000000981:diagnostic imaging; D013977:Tibia / Q000000981:diagnostic imaging
chemical_list: D001466:Barium Sulfate