1. Remission of primary hyperparathyroidism after fine needle aspiration of a parathyroid nodule mistaken for a thyroid nodule.
- Author
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da Silva EMM, da Costa Ferreira RA, de Almeida Rodrigues Marques B, Chorão MCS, and Duarte JMS
- Subjects
- Humans, Female, Aged, Biopsy, Fine-Needle, Calcium, Parathyroid Hormone, Hemorrhage, Thyroid Nodule complications, Parathyroid Neoplasms complications, Hyperparathyroidism, Primary complications
- Abstract
Primary hyperparathyroidism (PHPT) is an endocrine disorder characterized by hypercalcaemia and elevated or inappropriately normal concentrations of parathyroid hormone. Remission of PHPT caused by infarction or hemorrhage of a parathyroid adenoma rarely occurs, either spontaneously or induced, not always leading to a definitive cure. We report a case of 72-year-old women with primary hyperparathyroidism who underwent fine-needle aspiration cytology (FNAC) of a parathyroid adenoma mistaken for a thyroid nodule followed by normalization of parathyroid hormone (PTH) and serum calcium levels. Parathyroid origin was confirmed by immunohistochemistry. PTH levels began to rise at 4 months after FNAC demonstrating recurrence of the PHPT. This report shows that FNAC induced hemorrhage may cause remission of PHPT. Nevertheless, patient´s levels of PTH and serum calcium should be monitored, as remission may only be transitory.
- Published
- 2023
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