title: The CT classification of ethmoid mucoceles.
abstract: The computed tomography (CT) appearance of mucoceles involving the ethmoid sinuses is presented. A classification based on the growth patterns of these mucoceles is proposed, and a differential diagnosis for each group is suggested. The unique CT appearance of the ethmoid polypoid--mucocele is described for the first time, and the radiographic definition of a mucocele is discussed.
mesh_terms: D003937:Diagnosis, Differential; D005005:Ethmoid Sinus / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D009078:Mucocele / Q000145:classification* / Q000000981:diagnostic imaging / Q000473:pathology; D010254:Paranasal Sinus Diseases / Q000145:classification / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed