title: A-mode ultrasound evaluation of maxillary sinusitis.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008441:Maxillary Neoplasms / Q000175:diagnosis; D008443:Maxillary Sinus / Q000000981:diagnostic imaging; D011127:Polyps / Q000175:diagnosis; D011859:Radiography; D012852:Sinusitis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014463:Ultrasonography