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Endocrine Abstracts (2022) 81 EP175 | DOI: 10.1530/endoabs.81.EP175

ECE2022 Eposter Presentations Calcium and Bone (114 abstracts)

Differences between atypical parathyroid adenomas and parathyroid adenomas in patients with primary hyperparathyroidism

Ensar Aydemir , Coskun Ates , Yasemin Aydoğan Ünsal , Erhan Hocaoglu , Filiz Mercan Saridas , Soner Cander , Ozen OZ GUL , Canan Ersoy & Erdinc Erturk

Uludag University Medical School, Bursa, Turkey.

Background: Atypical parathyroid adenoma (APA) is a rare disease that can be challenging to distinguish from benign parathyroid adenoma. APA shows some laboratory and histopathological features with parathyroid cancer. This study attempts to compare clinical, laboratory, radiologic and histopathological characteristics in APA and parathyroid adenoma (PA).

Methods: This was a retrospective study was based on the database of eighty-two subjects who underwent surgery for primary hyperparathyroidism at a tertiary referral center between 2010 and 2021. Forty-one patients with APA matched by age and gender to controls with PA. Clinical, laboratory, radiologic and characteristics were obtained from the hospital database.

Results: Forty-five (54.8%) of primary hyperparathyroidism (PHPT) patients were symptomatic, 36 (90%) had nephrolithiasis, 6 (15%) had fracture and 3 (7.5%) had hypercalcaemic crisis. APA patients present with significantly inceased serum calcium, parathormone (PTH) and alkalen phosphatase levels (P<.001, all). No significant difference was observed in the results of bone mineral density (BMD), T-scores and Z-scores. The size of adenoma was significantly greater in APA group (24 (8.8–70) mm vs. 12 (3.8–32) mm, P=0.005).

Conclusion: Our study revealed that increased preoperative serum calcium, parathormone, alkalen phosphatase concentrations and parathyroid adenoma size on ultrasound may have predicted the atypical parathyroid adenoma.

Volume 81

European Congress of Endocrinology 2022

Milan, Italy
21 May 2022 - 24 May 2022

European Society of Endocrinology 

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