Management and Long-Term Monitoring of a Young Patient with Pheochromocytoma and RET Mutation: A Case Report

Qingqing Zhang,1,2,* Xue Wei,2,* Jing Zheng,1 Bangkui Xu,2 Yu Lu,2 Shufang Yang,2 Yucheng Wu3 1Department of Pan-Vascular Management Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizho...

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Main Authors: Zhang Q, Wei X, Zheng J, Xu B, Lu Y, Yang S, Wu Y
Format: Article
Language:English
Published: Dove Medical Press 2025-03-01
Series:International Medical Case Reports Journal
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Online Access:https://www.dovepress.com/management-and-long-term-monitoring-of-a-young-patient-with-pheochromo-peer-reviewed-fulltext-article-IMCRJ
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author Zhang Q
Wei X
Zheng J
Xu B
Lu Y
Yang S
Wu Y
author_facet Zhang Q
Wei X
Zheng J
Xu B
Lu Y
Yang S
Wu Y
author_sort Zhang Q
collection DOAJ
description Qingqing Zhang,1,2,* Xue Wei,2,* Jing Zheng,1 Bangkui Xu,2 Yu Lu,2 Shufang Yang,2 Yucheng Wu3 1Department of Pan-Vascular Management Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu, People’s Republic of China; 2Department of Endocrinology, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu, People’s Republic of China; 3Department of Cardiology, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu, People’s Republic of China*These authors contributed equally to this workCorrespondence: Shufang Yang, Email 47607369@qq.com Yucheng Wu, Email 2567181759@qq.comBackground: Pheochromocytoma is a rare catecholamine-secreting tumor that can present with severe hypertensive episodes and other symptoms due to excessive catecholamine release. Approximately 30% of pheochromocytomas are associated with hereditary syndromes, including multiple endocrine neoplasia type 2A (MEN2A), an autosomal dominant disorder caused by mutations in the RET proto-oncogene. MEN2A is characterized by the presence of medullary thyroid carcinoma, pheochromocytoma, and primary hyperparathyroidism.Case Presentation: We report the case of a 19-year-old female who presented with pheochromocytoma without experiencing a crisis, despite having a significant adrenal mass and undergoing high-dose glucocorticoid treatment. Genetic testing revealed a heterozygous missense mutation in the RET gene (c.1900T > C: p. Cys634Arg), associated with MEN2A. Further endocrine evaluation identified a thyroid nodule with mildly elevated calcitonin levels, but normal electrolyte and parathyroid hormone levels. Over a 15-month postoperative follow-up, the patient exhibited persistently mild hypercalcitoninemia with stable thyroid nodule size, while PTH and serum calcium levels showed a progressive increase. Further parathyroid scintigraphy using 99mTc-MIBI was performed, yielding a negative result for parathyroid adenoma.Conclusion: Patients with MEN2A require comprehensive, long-term follow-up to monitor for recurrence of pheochromocytoma and the development of additional endocrine neoplasms. This case highlights the role of genetic testing in guiding the management of hereditary pheochromocytoma and supports the importance of personalized monitoring strategies in patients with MEN2A.Keywords: pheochromocytoma, glucocorticoids, RET mutation, case report
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spelling doaj-art-92cfa8f47aa64a2fae59bc5946b99f472025-08-20T03:40:34ZengDove Medical PressInternational Medical Case Reports Journal1179-142X2025-03-01Volume 18395404101416Management and Long-Term Monitoring of a Young Patient with Pheochromocytoma and RET Mutation: A Case ReportZhang QWei XZheng JXu BLu YYang SWu YQingqing Zhang,1,2,* Xue Wei,2,* Jing Zheng,1 Bangkui Xu,2 Yu Lu,2 Shufang Yang,2 Yucheng Wu3 1Department of Pan-Vascular Management Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu, People’s Republic of China; 2Department of Endocrinology, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu, People’s Republic of China; 3Department of Cardiology, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu, People’s Republic of China*These authors contributed equally to this workCorrespondence: Shufang Yang, Email 47607369@qq.com Yucheng Wu, Email 2567181759@qq.comBackground: Pheochromocytoma is a rare catecholamine-secreting tumor that can present with severe hypertensive episodes and other symptoms due to excessive catecholamine release. Approximately 30% of pheochromocytomas are associated with hereditary syndromes, including multiple endocrine neoplasia type 2A (MEN2A), an autosomal dominant disorder caused by mutations in the RET proto-oncogene. MEN2A is characterized by the presence of medullary thyroid carcinoma, pheochromocytoma, and primary hyperparathyroidism.Case Presentation: We report the case of a 19-year-old female who presented with pheochromocytoma without experiencing a crisis, despite having a significant adrenal mass and undergoing high-dose glucocorticoid treatment. Genetic testing revealed a heterozygous missense mutation in the RET gene (c.1900T > C: p. Cys634Arg), associated with MEN2A. Further endocrine evaluation identified a thyroid nodule with mildly elevated calcitonin levels, but normal electrolyte and parathyroid hormone levels. Over a 15-month postoperative follow-up, the patient exhibited persistently mild hypercalcitoninemia with stable thyroid nodule size, while PTH and serum calcium levels showed a progressive increase. Further parathyroid scintigraphy using 99mTc-MIBI was performed, yielding a negative result for parathyroid adenoma.Conclusion: Patients with MEN2A require comprehensive, long-term follow-up to monitor for recurrence of pheochromocytoma and the development of additional endocrine neoplasms. This case highlights the role of genetic testing in guiding the management of hereditary pheochromocytoma and supports the importance of personalized monitoring strategies in patients with MEN2A.Keywords: pheochromocytoma, glucocorticoids, RET mutation, case reporthttps://www.dovepress.com/management-and-long-term-monitoring-of-a-young-patient-with-pheochromo-peer-reviewed-fulltext-article-IMCRJpheochromocytomaglucocorticoidsret mutationcase report
spellingShingle Zhang Q
Wei X
Zheng J
Xu B
Lu Y
Yang S
Wu Y
Management and Long-Term Monitoring of a Young Patient with Pheochromocytoma and RET Mutation: A Case Report
International Medical Case Reports Journal
pheochromocytoma
glucocorticoids
ret mutation
case report
title Management and Long-Term Monitoring of a Young Patient with Pheochromocytoma and RET Mutation: A Case Report
title_full Management and Long-Term Monitoring of a Young Patient with Pheochromocytoma and RET Mutation: A Case Report
title_fullStr Management and Long-Term Monitoring of a Young Patient with Pheochromocytoma and RET Mutation: A Case Report
title_full_unstemmed Management and Long-Term Monitoring of a Young Patient with Pheochromocytoma and RET Mutation: A Case Report
title_short Management and Long-Term Monitoring of a Young Patient with Pheochromocytoma and RET Mutation: A Case Report
title_sort management and long term monitoring of a young patient with pheochromocytoma and ret mutation a case report
topic pheochromocytoma
glucocorticoids
ret mutation
case report
url https://www.dovepress.com/management-and-long-term-monitoring-of-a-young-patient-with-pheochromo-peer-reviewed-fulltext-article-IMCRJ
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