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Asymptomatic primary hyperparathyroidism in children. Newer methods of preoperative diagnosis
Insights
Primary hyperparathyroidism in children, often caused by parathyroid adenoma, can present with asymptomatic hypercalcemia. Diagnostic certainty is crucial due to unclear surgical indications for this rare childhood disorder.
Area of Science:
- Pediatric Endocrinology
- Surgical Endocrinology
- Diagnostic Imaging
Background:
- Primary hyperparathyroidism is rare in children, often presenting subtly.
- Asymptomatic hypercalcemia can be the sole manifestation of this condition in pediatric patients.
Observation:
- An 11-year-old boy with an isolated parathyroid adenoma presented with asymptomatic hypercalcemia.
- Diagnostic tools like parathyroid hormone assays and calcium-creatinine clearance ratio are vital.
Findings:
- Accurate noninvasive localization of parathyroid adenomas is achievable with real-time ultrasonography and dual-isotope subtraction scanning.
- Distinguishing parathyroid hormone excess from hypocalciuric hypercalcemia is essential for diagnosis.
Implications:
- The prognosis of untreated pediatric primary hyperparathyroidism remains unknown.
- Clear indications for surgical intervention in asymptomatic pediatric cases are not established.
- Preoperative diagnostic certainty is paramount before surgical exploration in children.
Abstract:
An asymptomatic 11-year-old boy was found to have primary hyperparathyroid secondary to an isolated parathyroid adenoma. This rare disorder of childhood can have asymptomatic hypercalcemia as its only manifestation. Parathyroid hormone assays and studies of urinary calcium excretion, especially the calcium-creatinine clearance ratio, distinguish parathyroid hormone excess from hypocalciuric forms of hypercalcemia. Real-time ultrasonography and dual-isotope subtraction scanning provide accurate, noninvasive, preoperative localization of abnormal parathyroid tissue. The prognosis of untreated, asymptomatic primary hyperparathyroidism in children is not known, and the indications for surgery are unclear. Diagnostic certainty is, therefore, especially important prior to surgical exploration.