MULTIFOCAL BROWN TUMOR REVEALING PRIMARY HYPERPARATHYROIDISM.

The brown tumor or fibrocystic osteitis is a rare bone lesion secondary to hyperparathyroidism. It can affect the whole bone skeleton with sometimes-infrequent locations. We present a case of multiple brown tumors with unusual bone localization revealed by a phosphocalcic metabolic disorder and primary hyperparathyroidism. After hypocalcemic medical treatment and targeted parathyroid surgery, the evolution was favorable with immediate normalization of parathyroid hormone.This case focuses on the role of 99mTc-Sestamibi functional imaging to optimize the diagnostic orientation and therapeutic strategy of this type of tumor.