title: Popliteal cysts in juvenile rheumatoid arthritis.
mesh_terms: D001171:Arthritis, Juvenile / Q000150:complications*; D002648:Child; D003560:Cysts / Q000000981:diagnostic imaging / Q000209:etiology*; D005260:Female; D006801:Humans; D007717:Knee; D007719:Knee Joint / Q000000981:diagnostic imaging; D008297:Male; D011859:Radiography