Facial Dysmorphism Due to Multiple Brown Tumors Secondary to Large Parathyroid Adenoma, Diagnosed on (99m)Tc-Sestamibi Parathyroid Scintigraphy

Brown tumors are an uncommon entity associated with hyperparathyroidism. Initially described with primary hyperparathyroidism, with the widespread use of dialysis, they were also seen to be associated with secondary and tertiary hyperparathyroidism. These are lytic, expansile lesions causing bony pains, and depending on the size and extent, skeletal dysmorphism. The present case illustrates the detection of parathyroid adenoma with multiple brown tumors on (99m)Tc-sestamibi parathyroid scintigraphy in a patient presenting with facial dysmorphism and multiple bony pains.