RET T244I Germline Variant Mutation in a Patient with Pancreatic Paraganglioma and Primary Hyperparathyroidism.

Autor:	Kim M; Division of Surgical Oncology, Nuvance Health, Danbury, CT, USA.; Department of General Surgery, Danbury Hospital, Danbury, CT, USA., Aploks K; Division of Surgical Oncology, Nuvance Health, Danbury, CT, USA.; Department of General Surgery, Danbury Hospital, Danbury, CT, USA., Vargas-Pinto S; Division of Surgical Oncology, Nuvance Health, Danbury, CT, USA.; Department of General Surgery, Danbury Hospital, Danbury, CT, USA., Dong X; Division of Surgical Oncology, Nuvance Health, Danbury, CT, USA.; Department of General Surgery, Danbury Hospital, Danbury, CT, USA.
Jazyk:	angličtina
Zdroj:	International journal of endocrinology and metabolism [Int J Endocrinol Metab] 2022 Jun 27; Vol. 20 (3), pp. e121056. Date of Electronic Publication: 2022 Jun 27 (Print Publication: 2022).
DOI:	10.5812/ijem-121056
Abstrakt:	Introduction: Paragangliomas are rare neuroendocrine tumors that arise from chromaffin cells. Often termed extra-adrenal pheochromocytomas, these tumors vary with regards to their functionality, location, and malignant potential. Mutations in the RET proto-oncogene are associated with multiple endocrine neoplasia syndrome type 2 (MEN-2) and paragangliomas. The phenotypes of the individual mutations are documented to help determine prognosis. Case Presentation: We report a case of a 64-year-old man with a history of parathyroid adenoma who developed a pancreatic retroperitoneal paraganglioma. Despite having laboratory evidence of excess circulating catecholamines, the patient's only presenting symptom was hip pain. The patient underwent resection, and histologic findings were consistent with paraganglioma with lymph node metastasis. Genetic testing revealed a variant of uncertain significance within the RET gene [c.731C>T (p.T244I)]. Conclusions: Paragangliomas are rare extra-adrenal neuroendocrine tumors that can be associated with germline mutations. Our patient was diagnosed with a pancreatic paraganglioma associated with a RET T244I mutation. Identifying patients with germline mutations is important for documenting phenotypic presentations of RET gene variants of uncertain significance, which will allow physicians to provide proper management and surveillance of paragangliomas and other associated tumors. Competing Interests: Conflict of Interests: The authors of this manuscript have no personal or financial conflicts of interest to declare. All authors are employed by Danbury Hospital, which is part of the Nuvance Health System, and have no further association with other organizations. (Copyright © 2022, International Journal of Endocrinology and Metabolism.)
Databáze:	MEDLINE
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