Oral cavity T-cell lymphoma occurs rarely. This case report describes a patient with such a tumor. The case was a 48 year old male presenting with a painless ulcer on palate mucosa. He had suffered from nasal obstruction. Pathology revealed the presence of a T-cell lymphoma tumor in the palate. Though rare, the signs and symptoms of the case suggest that T-cell lymphoma should be considered in the differential diagnosis of oral cavity lesions.