title: Unusual cases of hyperparathyroidism.
abstract: The history, physical and radiologic findings, treatment and pathology in five unusual cases of hyperparathyroidism is presented. The hyperparathyroidism was caused by a large (113 grams) mediastinal adenoma in the first patient, who is alive 25 years after surgery. A parathyroid carcinoma with compression of the esophagus was documented in the second patient. This patient is alive and normocalcemic 23 years after surgical treatment. A third patient with hyperplasia returned with hypercalcemia 20 years postsurgery requiring reoperation. A fourth patient with advanced bone findings was found to have a parathyroid adenoma. The fifth case is a patient with tertiary hyperparathyroidism secondary to hypophosphatemic rickets.
authors.affiliation: Department of Surgery, University of Puerto Rico School of Medicine, San Juan 00936-5067.
authors.forename: E
authors.initials: E
authors.lastname: Vázquez-Quintana
authors.forename: L
authors.initials: L
authors.lastname: Haddock
authors.forename: F
authors.initials: F
authors.lastname: Aguiló
authors.forename: R
authors.initials: R
authors.lastname: Sotomayor
authors.forename: M
authors.initials: M
authors.lastname: Ramírez
authors.forename: J
authors.initials: J
authors.lastname: Vázquez-Plard
authors.forename: V
authors.initials: V
authors.lastname: Rabell
authors.forename: H
authors.initials: H
authors.lastname: Pagán Sáez
mesh_terms: D000236:Adenoma / Q000150:complications* / Q000378:metabolism / Q000601:surgery; D000328:Adult; D005260:Female; D006801:Humans; D006934:Hypercalcemia / Q000209:etiology; D006961:Hyperparathyroidism / Q000209:etiology*; D006962:Hyperparathyroidism, Secondary / Q000209:etiology*; D006965:Hyperplasia; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications* / Q000378:metabolism / Q000601:surgery; D010280:Parathyroid Glands / Q000473:pathology; D010281:Parathyroid Hormone / Q000378:metabolism; D010282:Parathyroid Neoplasms / Q000150:complications* / Q000601:surgery; D016105:Parathyroidectomy; D012279:Rickets / Q000150:complications*
chemical_list: D010281:Parathyroid Hormone