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  • Title: [Re-evaluation of ultrasonographic localization in primary hyperparathyroidism (report of 55 cases)].
    Author: Zhang J.
    Journal: Zhongguo Yi Xue Ke Xue Yuan Xue Bao; 1992 Dec; 14(6):408-12. PubMed ID: 1363900.
    Abstract:
    In 1983-1991, 55 cases of primary hyperparathyroidism confirmed by pathology and surgery were screened by ultrasonography. Its frequency was 3.5 or 7.5 MHz. The ultrasonographic results showed as follows. The appearance rate of the foci in the normal position of the parathyroid was 95%, including adenoma and hyperplasia; its size of pathology was bigger than that determined by US; the sensitivity of US was 55.3%, specificity 96.2%, accuracy 81.8%, positive predictive value 81.5%, and negative predictive value 86.5%. The results improving its level of ultrasonographic diagnosis were proved as follows. (1) knowing the anatomy of parathyroids, and preventing from false positive and false negative; (2) differentiating from primary and secondary hyperparathyroidism; (3) grasping the features of multiple endocrine neoplasia; (4) careful and repeated examination was key to early and correct diagnosis.
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