Late-developing tongue adenoid cystic carcinoma after pulmonary metastasectomy: a case report.

Adenoid cystic carcinoma (ACC) is a relatively rare epithelial tumor of the salivary glands that accounts for approximately 5 to 10% of all salivary gland neoplasms. The typical clinical and pathological findings of this tumor include slow indolent growth, common local recurrence, and late distant metastasis to lung, brain, bone, liver, thyroid, and spleen. We report a 52-year-old female patient who presented a tongue ACC, 27 months after successful pulmonary ACC resection.