title: Concurrent osteoblastoma and aneurysmal bone cyst of the ethmoid sinus: case report.
abstract: A unique case of osteoblastoma and aneurysmal bone cyst of the ethmoid sinus is reported. A causal relationship may exist between the two entities. The computed tomography appearance consisted of a dense lesion with a thin sclerotic rim containing a low-attenuation center, causing ethmoid sinus enlargement. Similar radiologic appearances are seen with other less rare pathologies.
mesh_terms: D000293:Adolescent; D001845:Bone Cysts / Q000000981:diagnostic imaging* / Q000473:pathology; D005005:Ethmoid Sinus / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local; D010017:Osteoma, Osteoid / Q000000981:diagnostic imaging* / Q000473:pathology; D010255:Paranasal Sinus Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography