title: X-ray of the month. Sphenoid sinus mucocele simulating a malignancy.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D009078:Mucocele / Q000175:diagnosis* / Q000000981:diagnostic imaging; D010254:Paranasal Sinus Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013101:Sphenoid Sinus; D014057:Tomography, X-Ray Computed