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  • Title: [Scintigraphic localization of ectopic parathyroid tissue].
    Author: Thordarson H, Fjeld JG, Rootwelt K, Pfeffer P, Bollerslev J.
    Journal: Tidsskr Nor Laegeforen; 1997 Nov 10; 117(27):3949-52. PubMed ID: 9441421.
    Abstract:
    Ectopic parathyroid adenomas and hyperplastic glands are difficult to locate during surgical exploration. Failure to find and remove them is the most usual cause of surgical failure in the treatment of hyperparathyroidism. Earlier methods of preoperative localization of pathological parathyroid tissue had low sensitivity and were not generally recommended. Recent advances in parathyroid scintigraphy have improved this technique; the sensitivity is now as high as 95% for parathyroid adenomas. In the present study, ectopic parathyroid adenomas and hyperplasia were correctly localized by scintigraphy and were verified surgically in seven patients. Six of the patients had previously undergone ten unsuccessful operations altogether. Preoperative parathyroid scintigraphy might have saved these failed surgical explorations. In a pregnant woman, a mediastinal parathyroid adenoma was correctly localized by preoperative parathyroid scintigraphy. This patient was successfully operated by a sternotomy, and she was the only one of five patients with a mediastinal parathyroid adenoma who escaped unnecessary neck exploration. Preoperative parathyroid scintigraphy may reduce the number of surgical failures in hyperparathyroidism and shorten the operation time by less extensive exploration and thus fewer complications.
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