title: Aneurysmal bone cyst of clavicle.
abstract: Two aneurysmal bone cysts are described. They presented difficulties in diagnosis because the patients were rather older than usual for this lesion and because of the uncommon location of the cysts. The nature of aneurysmal bone cysts is discussed.
mesh_terms: D000367:Age Factors; D001845:Bone Cysts / Q000000981:diagnostic imaging* / Q000473:pathology; D002968:Clavicle / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D011859:Radiography