title: Test your diagnostic ability.
authors.forename: R K
authors.initials: RK
authors.lastname: Kuba
mesh_terms: D003560:Cysts / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D008443:Maxillary Sinus; D010254:Paranasal Sinus Diseases / Q000175:diagnosis*