A case of pleomorphic adenoma of the parotid gland metastasizing to a mediastinal lymph node

Pleomorphic adenomas are the most common salivary gland tumors and are typically cured with complete surgical excision. There are rare reports, however, in which these histologically benign tumors have inexplicably metastasized to distant sites. We present a case of a patient who presented, 27 years after excision of a parotid pleomorphic adenoma, with a recurrence in the parotid bed and a mediastinal metastasis.Case report.A 43-year-old woman...