title: Opaque maxillary antrum: a pictorial review.
abstract: The demonstration of an opaque antrum on a plain radiograph or cross-sectional imaging leads to consideration of an extensive differential diagnosis. Relevant clinical details narrow the differential and include the patient's age, signs and symptoms, a history of recent trauma, prior surgery or dental treatment. Computed tomography remains the most useful technique in coming to a specific diagnosis. Magnetic resonance imaging adds specificity in a few selected situations and is required in conjunction with CT in the staging of malignant tumours.
authors.affiliation: Perth Radiological Clinic, Department of Otolaryngology, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia. dr.whyte@perthradclinic.com.au
authors.forename: A
authors.initials: A
authors.lastname: Whyte
authors.forename: G
authors.initials: G
authors.lastname: Chapeikin
mesh_terms: D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D005357:Fibrous Dysplasia of Bone / Q000175:diagnosis; D005491:Focal Infection, Dental / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008443:Maxillary Sinus / Q000002:abnormalities / Q000473:pathology*; D008444:Maxillary Sinus Neoplasms / Q000175:diagnosis; D015523:Maxillary Sinusitis / Q000175:diagnosis; D009078:Mucocele / Q000175:diagnosis; D009807:Odontogenic Cysts / Q000175:diagnosis; D009808:Odontogenic Tumors / Q000175:diagnosis; D010254:Paranasal Sinus Diseases / Q000175:diagnosis*; D011127:Polyps / Q000175:diagnosis; D014057:Tomography, X-Ray Computed