title: Nonfunctioning parathyroid carcinoma.
abstract: Parathyroid carcinoma is a rare clinical entity accounting for only 4 per cent of all cases of parathyroid neoplasia. Nonfunctioning parathyroid carcinoma is even rarer. Previously, virtually all patients with these lesions were treated for a nonspecific neck mass. However, in the present case, a preoperative diagnosis of nonfunctioning parathyroid carcinoma was made based on the technetium pertechnetate/thallium 201 subtraction scan. The authors report on the 14th case of nonfunctioning parathyroid carcinoma, a review of the literature, and guidelines for the preoperative and operative evaluation of neck masses suspected to be parathyroid carcinoma.
authors.affiliation: Department of Surgery, Wright State University, School of Medicine, Dayton, Ohio.
authors.forename: B K
authors.initials: BK
authors.lastname: Klink
authors.forename: R E
authors.initials: RE
authors.lastname: Karulf
authors.forename: W N
authors.initials: WN
authors.lastname: Maimon
authors.forename: J B
authors.initials: JB
authors.lastname: Peoples
mesh_terms: D000328:Adult; D002277:Carcinoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D008297:Male; D010282:Parathyroid Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D016105:Parathyroidectomy; D011379:Prognosis; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013794:Thallium Radioisotopes; D013965:Thyroidectomy
chemical_list: D013794:Thallium Radioisotopes; D013670:Sodium Pertechnetate Tc 99m