An unusual case of tracheo-pleural fistula and cardiac metastases in oropharyngeal carcinoma: a case report and review of the literature.

Even in case of a transient complete local response, the potential occurrence of severe complications and distant metastases, although infrequent, should be considered. Cardiac metastases are frequently underestimated, as they are often asymptomatic, but may lead to sudden death. Further efforts are needed to improve diagnosis and therapy in this setting.