Ultrasonic examination of the paranasal sinuses.
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005626:Frontal Sinus; D006801:Humans; D008297:Male; D008443:Maxillary Sinus; D008875:Middle Aged; D010254:Paranasal Sinus Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography