Recurrent Nasal Type NK/T-Cell Lymphoma

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.

The reemergence of medulloblastoma after a period of remission.

The reemergence of marginal zone B-cell lymphoma after a period of remission.

The reemergence of a mantle cell lymphoma after a period of remission.