title: Ewing's sarcoma arising in a unicameral bone cyst.
abstract: An 8-year-old boy sustained a fracture of the distal fibula. The fracture resulted from Ewing's sarcoma infiltrating a unicameral bone cyst. Ewing's sarcoma has not previously been described in association with a unicameral bone cyst.
mesh_terms: D001845:Bone Cysts / Q000150:complications* / Q000473:pathology / Q000601:surgery; D002648:Child; D005360:Fibula / Q000000981:diagnostic imaging / Q000293:injuries*; D005598:Fractures, Spontaneous / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008297:Male; D011859:Radiography; D012512:Sarcoma, Ewing / Q000150:complications* / Q000473:pathology / Q000601:surgery