[Mediastinal hyperparathyroidism: report of 4 cases].
D000236:Adenoma / Q000601:surgery*; D000328:Adult; D002828:Choristoma; D005260:Female; D006801:Humans; D006961:Hyperparathyroidism / Q000601:surgery*; D008297:Male; D008479:Mediastinal Neoplasms / Q000601:surgery*; D010280:Parathyroid Glands