The use of ultrasound to localize calculi within the parotid gland.
D003560:Cysts / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010306:Parotid Gland; D012465:Salivary Duct Calculi / Q000175:diagnosis*; D012466:Salivary Gland Diseases / Q000175:diagnosis; D014463:Ultrasonography