Parathyroid hyperplasia: an unusual cause of neonatal hypercalcemia

Area of Science:

• Pediatric Endocrinology
• Surgical Oncology
• Genetics

Background:

• Primary hyperparathyroidism (PHPT) in infants is a rare condition characterized by parathyroid chief cell hyperplasia.
• PHPT presents with severe chronic hypercalcemia, leading to failure to thrive, irritability, abdominal pain, and anorexia.
• Medical management for infant PHPT is often ineffective, carrying significant risks of mortality or persistent hypercalcemia.

Observation:

• A 7-month-old infant presented with symptoms consistent with severe chronic hypercalcemia due to PHPT.
• The infant's condition was attributed to parathyroid chief cell hyperplasia.
• Conservative medical therapies proved inadequate for managing the infant's hypercalcemia.

Findings:

• Subtotal parathyroidectomy was performed on the infant.
• The surgical intervention successfully resolved the chronic hypercalcemia.
• Histopathological examination confirmed parathyroid chief cell hyperplasia as the underlying cause.

Implications:

• Surgical intervention, specifically subtotal parathyroidectomy, is a viable and effective treatment for PHPT in infants.
• Early surgical management can prevent severe complications associated with chronic hypercalcemia in infants.
• This case highlights the importance of considering surgical options for PHPT when medical management fails in pediatric patients.