title: Parathyroid carcinoma. Report of three cases.
abstract: Primary or relapsing hyperparathyroidism should not be considered a result only of benign conditions like adenoma or hyperplasia (primary or secondary). Parathyroid carcinoma is often the real cause but, because of its rarity, sometimes it is either overlooked or misdiagnosed. Even histologic classification can be erroneous. Distant metastases or ectopic location of the tumors are another potential cause of misdiagnosis, especially when management is decided without the help of diagnostic imaging modalities, particularly those related to the functional aspect of the tumors or their metastases, such as the Tl-201/Tc-99m subtraction scan and the Tl-201 whole body scan.
authors.affiliation: Department of Nuclear Medicine, Athens University, Greece.
authors.forename: A
authors.initials: A
authors.lastname: Stavraka-Kakavaki
authors.forename: O
authors.initials: O
authors.lastname: Fronistas
authors.forename: M
authors.initials: M
authors.lastname: Toumbouros
authors.forename: C
authors.initials: C
authors.lastname: Manolas
mesh_terms: D000328:Adult; D002277:Carcinoma / Q000150:complications / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D006961:Hyperparathyroidism / Q000209:etiology; D008297:Male; D008875:Middle Aged; D010280:Parathyroid Glands / Q000000981:diagnostic imaging*; D010282:Parathyroid Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013382:Subtraction Technique; D013794:Thallium Radioisotopes
chemical_list: D013794:Thallium Radioisotopes; D013670:Sodium Pertechnetate Tc 99m