Brown tumors are rare lesions that can develop in persistent cases of hyperparathyroidism (HPT). Therefore, identification of these lesions by diagnostic imaging is important during the follow-up of patients with HPT. This report describes a 45-year-old woman who developed HPT-induced brown tumors that appeared initially as an oral lesion. The diagnosis, treatment, and control of the disease--as well as the histopathological characteristics--are emphasized.