title: A-scan tracings in the location of parathyroid tumours.
mesh_terms: D000236:Adenoma / Q000175:diagnosis* / Q000601:surgery; D000328:Adult; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010282:Parathyroid Neoplasms / Q000175:diagnosis* / Q000601:surgery; D014463:Ultrasonography