Abstract
Primary hyperparathyroidism, a common endocrine disorder, is associated with familial disease in about 10% of cases. These syndromes include multiple endocrine neoplasia types 1, 2A and 4 (MEN1, MEN2A, MEN4), familial isolated hyperparathyroidism (FIHP), and the hyperparathyroidism jaw tumor (HPT-JT) syndrome. HPT-JT syndrome, an autosomal dominant disease with incomplete penetrance, results from a germline inactivating mutation in the HRPT2 gene. HPT-JT manifests with about 20% of patients having multiple enlarged parathyroid glands and/or parathyroid carcinoma. Furthermore, 28% of patients will have a recurrence during follow-up. Since these patients have a high rate of multiple enlarged parathyroid glands, parathyroid carcinoma, and recurrence, it is controversial as to what is the optimal initial surgical approach for parathyroidectomy. Clinical evidence for the optimal initial surgical approach for HPT-JT syndrome is limited to case series and retrospective small cohort studies. Furthermore, there is scant data on the clinical utility of localization studies to select the optimal operative approach. Only one study reported the results of localization studies and showed a lack of benefit due to high rates of multigland disease that would have been missed if a focused parathyroidectomy approach was used. Given the high rates of multigland disease, parathyroid carcinoma, risk of recurrence, and the possibility of missing additional enlarged glands not seen on preoperative localizing studies, bilateral neck exploration with identification of all four glands and removal of enlarged glands would be the best surgical approach given our current knowledge.
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Patel, D., Kebebew, E. (2018). Four-Gland Exploration Versus Focused Parathyroidectomy for Hyperparathyroidism Jaw Tumor Syndrome. In: Angelos, P., Grogan, R. (eds) Difficult Decisions in Endocrine Surgery. Difficult Decisions in Surgery: An Evidence-Based Approach. Springer, Cham. https://doi.org/10.1007/978-3-319-92860-9_20
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