title: Ectopic parathyroid adenoma in the posterior triangle of the neck.
abstract: Ectopic parathyroid adenomas are a major cause of persistent hyperparathyroidism. They can be located anywhere from the base of the tongue to the mediastinum. We describe a patient with hyperparathyroidism from an adenoma in a supernumerary gland located in the left posterior triangle of the neck, outside of the carotid sheath.
authors.affiliation: Division of Surgery, Instituto Nacional de la Nutrición, México, D.F.
authors.forename: M F
authors.initials: MF
authors.lastname: Herrera
authors.forename: A
authors.initials: A
authors.lastname: Reza
authors.forename: A
authors.initials: A
authors.lastname: Graeff
authors.forename: C M
authors.initials: CM
authors.lastname: López-Graniel
authors.forename: L H
authors.initials: LH
authors.lastname: López
authors.forename: A
authors.initials: A
authors.lastname: Angeles
mesh_terms: D000208:Acute Disease; D000236:Adenoma / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D000328:Adult; D002828:Choristoma / Q000000981:diagnostic imaging / Q000601:surgery; D006258:Head and Neck Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D006934:Hypercalcemia / Q000209:etiology; D006961:Hyperparathyroidism / Q000097:blood / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D008297:Male; D010195:Pancreatitis / Q000209:etiology; D010280:Parathyroid Glands / Q000196:embryology; D010282:Parathyroid Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D011877:Radionuclide Imaging