An exceptionally rare case of renal metastasis from mandibular adenoid cystic carcinoma.

Adenoid cystic carcinoma is a rare malignant neoplasm characterized by slow growth, frequent perineural invasion, and a propensity for late distant metastasis, while renal involvement remains exceptionally uncommon. We report the case of a 48-year-old woman who presented renal lesion was diagnosed approximately three years after the initial treatment of the mandibular adenoid cystic carcinoma. The patient underwent right radical nephrectomy, and histopathological examination with immunohistochemical analysis confirmed secondary renal involvement by metastatic mandibular adenoid cystic carcinoma.