A 60-year-old @entity1 had a recurrence of @entity957 at the right side of the tongue base. Chemotherapy with TS-1 (100 mg/day) was begun. Each course of chemotherapy consisted of 4 weeks of TS-1, followed by 2 weeks of no treatment. After the completion of two courses, macroscopic examination revealed a complete response. From the third course of TS-1 treatment, the dose was increased to 120 mg/day. The complete response persisted on macroscopic examination. A biopsy done during the ninth course of TS-1 treatment confirmed the complete response histologically, with no evidence of @entity5 . After 12 courses of TS-1 treatment, the drug was switched to 600 mg/day of UFT. Although there were no signs or symptoms of recurrence, the @entity1 died of @entity788 . There was no recurrence of the @entity5 , even at the time of @entity204 .

[Long-term complete response to treatment with TS-1 in a XXXX with @entity957 ].

@entity1 :: ('9606', 'Species') :: ['patient', 'man'] @entity788 :: ('MESH:D010190', 'Disease') :: ['cancer of the pancreas'] @entity5 :: ('MESH:D009369', 'Disease') :: ['oropharyngeal cancer', 'malignancy'] @entity957 :: ('MESH:D002294', 'Disease') :: ['squamous cell carcinoma'] @entity204 :: ('MESH:D003643', 'Disease') :: ['death']
@entity1 :: (9606,Species) :: ['patient']
