Diagnostic ultrasonography in maxillary sinus disease.
D003560:Cysts / Q000175:diagnosis; D006801:Humans; D008441:Maxillary Neoplasms / Q000175:diagnosis; D008443:Maxillary Sinus; D008444:Maxillary Sinus Neoplasms / Q000175:diagnosis; D009298:Nasal Polyps / Q000175:diagnosis; D010254:Paranasal Sinus Diseases / Q000175:diagnosis*; D012852:Sinusitis / Q000175:diagnosis; D014463:Ultrasonography