Spontaneous resolution of hypercalcemia.

BACKGROUND: Primary hyperparathyroidism (PHPT) is a frequently encountered endocrine disorder due to benign neoplastic lesions or gland hyperplasia. It is often discovered incidentally when routine lab work reveals hypercalcemia.

METHODS: This case presents a 55-year-old male with a neck mass and electrolyte irregularities consistent with PHPT. However, his laboratory values suddenly normalized prior to surgery.

RESULTS: Post-operative pathologic analysis of the specimen demonstrated massive infarction of the affected gland, and explained the spontaneous resolution of the patient's electrolyte derangements.

CONCLUSIONS: The objective of this case study is to demonstrate the importance of further investigation in patients with fluctuating lab values and emphasize the potential dangers of gland infarction.