Ann Pediatr Endocrinol Metab.  2022 Jun;27(2):142-147. 10.6065/apem.2142006.003.

Three pediatric patients with primary hyperparathyroidism caused by parathyroid adenoma

• Oh A
• Lee Y
• Yoo HW
• Choi JH

• KMID: 2531279
• DOI: http://doi.org/10.6065/apem.2142006.003

Abstract

Primary hyperparathyroidism (PHPT) is a hypercalcemia disorder with inappropriately normal or increased serum parathyroid hormone (PTH) levels resulting from excessive secretion of PTH from one or more of the parathyroid glands. PHPT is uncommon in infants and children, with an estimated incidence of 2–5 cases per 100,000 persons. Patients with PHPT usually present with bone pain, urolithiasis, or nephrolithiasis, as well as nonspecific symptoms such as fatigue and weakness. Asymptomatic hypercalcemia may also be detected incidentally. Only a few cases of pediatric PHPT have been reported in Korea. We present three patients (a 9-year-old girl, a 14-year-old boy, and a 14-year-old girl) with PHPT who manifested variable clinical features of hypercalcemia. The first and second patients each had a parathyroid adenoma and presented with abdominal pain caused by pancreatitis and a ureter stone, respectively. The third patient had an ectopic mediastinal parathyroid adenoma and presented with gait disturbance and weakness of the lower extremities. All of the patients underwent surgical resection of parathyroid adenoma, and their serum calcium levels subsequently normalized without medication.

Keyword

Hypercalcemia; Hyperparathyroidism; Parathyroid adenoma

Figure

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  Fig. 1. Abdominal computerized tomography of subject 1. Mild pancreatic swelling (arrow) and subtle decrease in pancreatic tail density indicates interstitial edematous pancreatitis.

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  Fig. 2. Parathyroid ultrasonography (US) of subjects 1 and 2. (A) Parathyroid US of subject 1 revealed a well-defined 1.25×0.81×2.20-cm-sized hypoechoic mass in the lower pole in the posterior aspect of the left thyroid gland. (B) Parathyroid US of subject 2 showed a 1.5×0.5×1.6-cm-sized nodule with increased vascularity in the upper pole in the posterior aspect of the right thyroid gland, suggesting parathyroid adenoma.

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  Fig. 3. Parathyroid positron emission tomography-computed tomography (PET/CT) of subject 3. In the 10-minute and 2-hour regional images and PET/CT images, there is a mass showing local uptake on the right side of the anterior mediastinum.

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  Fig. 4. Contrast-enhanced computed tomography of the chest of subject 3 showing a 2.6×3.1-cm-sized, homogeneously enhancing mass in the anterior mediastinum (arrow), abutting to the ascending aorta, suggesting parathyroid adenoma.

Reference

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