Ewing's sarcoma: an unusual presentation.
D000293:Adolescent; D001859:Bone Neoplasms / Q000000981:diagnostic imaging*; D005350:Fibroma / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D011859:Radiography; D012512:Sarcoma, Ewing / Q000000981:diagnostic imaging*; D013977:Tibia