Recurrent Nasopharynx Carcinoma

The reemergence of undifferentiated carcinoma of the nasopharynx after a period of remission.

The reemergence of keratinizing squamous cell carcinoma of the nasopharynx after a period of remission.

The reemergence of nasal type NK/T-cell lymphoma after a period of remission.

The reemergence of nasal cavity or paranasal sinus carcinoma after a period of remission.

The reemergence of metastatic squamous cell carcinoma of unknown primary in the neck region after a period of remission.

The reemergence of a meningioma after a period of remission.