Fig. 4From: Osteolytic lesions (brown tumors) of primary hyperparathyroidism misdiagnosed as multifocal giant cell tumor of the distal ulna and radius: a case reportComputed tomography and ultrasonography of the neck revealed a 4.5 × 2.5 × 3.2 cm mass emanating from the right lobe of the thyroid gland. Parathyroid subtraction technetium-99m sestamibi (MIBI) scintigraphy showed extensive uptake in the right lower parathyroid glandBack to article page