Scintigraphic preoperative localization of abnormal parathyroid gland

The aim of this study is to evaluate the accuracy of scintigraphic preoperative localization of abnormal parathyroid gland. Methods : 25 patients with confirmed hyperparathyroidism undergone scintigraphic and ultrasound localization prior to surgery. Paratthyroid scintigraphy was done with thallium - techetium substraction and technetium-tetrofosmin dual phase techniques. Résults: scintigraphic sensitivity and specificity was 83 % and 100%. In primary hyperparathyroidism the sensitivity was 91 % vs 75 % in secondary one. Multinodular goiter affected sensitivity (72 %). Ultrasound had an overall sensitivity of 66 % and a specificity of 100%. Conclusion: parathyroid scintigraphy is non invasive, accurate and costeffective in localizing abnormal parathyroid gland especialy adenoma.