Functional Parathyroid Cyst: A Rare Cause of Malignant Hypercalcemia with Primary Hyperparathyroidism—A Case Report and Review of the Literature

<table>(a, b, c) Thyroid ultrasound showing large complex cystic mass within or adjacent to the right lobe of the thyroid gland measuring up to 4.5 cm representing thyroid versus parathyroid lesion. (d) Parathyroid scan shows increased uptake in the lobes of thyroid gland. “MIBI avid lesion with retained activity in the periphery.”</table>

Case Reports in Medicine

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Figure 1: Functional Parathyroid Cyst: A Rare Cause of Malignant Hypercalcemia with Primary Hyperparathyroidism—A Case Report and Review of the Literature 

Figure 1 | Functional Parathyroid Cyst: A Rare Cause of Malignant Hypercalcemia with Primary Hyperparathyroidism—A Case Report and Review of the Literature 