Hyperparathyroidism Jaw Tumor Syndrome Presenting as Recurrent Femur Fractures in a Young Woman; a Rare Presentation of a Rare Disease.

Hyperparathyroidism jaw tumor syndrome is an important diagnosis to consider in a young patient presenting with classic clinical features due to the risk of malignancy, familial involvement, and need to monitor for progressive systemic manifestations. As this is a rare disease, it can often be missed due to low degree of suspicion and the ability of the jaw tumor to mimic a metastatic deposit.