title: Aneurysmal bone cyst of the sacrum.
mesh_terms: D000293:Adolescent; D000328:Adult; D001845:Bone Cysts / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D011859:Radiography; D012447:Sacrum / Q000000981:diagnostic imaging; D013122:Spinal Diseases / Q000000981:diagnostic imaging