The "fallen fragment sign" in the diagnosis of unicameral bone cysts.
D001845:Bone Cysts / Q000000981:diagnostic imaging*; D002648:Child; D050723:Fractures, Bone / Q000150:complications*; D005598:Fractures, Spontaneous / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D008297:Male; D011859:Radiography