ECE2022 Eposter Presentations Endocrine-Related Cancer (61 abstracts)
Ectopic parathyroid adenoma of the recurrent laryngeal nerve (RLN) chain lymph node
Loubna Guissi , Mohamed Hamid Abdillahi , Manal Azriouil , Kaoutar Rifai , Hind Iraqi & Mohamed Elhassan Gharbi
Ibn Sina University Hospital, Endocrinology, Rabat, Morocco
Introduction: Parathyroid adenoma can be localized in an ectopic situation, especially at the mediastinal level. The localization at the level of the RLN chain lymph node has not been reported yet.
Case presentation: A 67-year-old woman without clinical signs of hyperparathyroidism, having undergone a left isthmolobectomy for a thyroid nodule suspected of being malignant, with intraoperative discovery of lymphadenopathy of the left RLN chain lymph node. The anatomo-histopathological analysis revealed a follicular adenoma and for the lymphadenopathy a morphological appearance in favor of a parathyroid adenoma which was confirmed by immunohistochemistry.
The preoperative work-up was unremarkable with a calcium level of 98 mg/l (84-102) and albuminemia at 44g/l (32-46) and phosphoremia at 37 mg/l (23-47). The diagnosis of non-functional ectopic parathyroid adenoma of the RLN chain lymph node was discovered incidentally on histological study.
Conclusion: This case illustrates an unusual location of a non-functional ectopic parathyroid adenoma of the RLN chain lymph node.
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Endocrine Abstracts
ISSN 1470-3947 (print) | ISSN 1479-6848 (online)
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