[Giant cell lesions of the maxilla disclosing primary hyperparathyroidism].

We report 2 cases of giant-cell lesions of the maxilla in two female patients aged 42 and 22 years. The initial diagnosis was giant-cell tumor and giant-cell repair granuloma. The diagnosis of brown tumor was established at discovery of primary hyperparathyroidism. We emphasize the importance of searching for hyperparathyroidism in patients with a giant-cell lesion of the maxilla.