Abstract
A case of multicentric carcinomas in the oral cavity after the occurrence of esophagus carcinoma was reported and discussed. A 56-year-old male with 5 primary cancers, which developed in the esophagus, mandibular gingiva, soft palate, central portion of the dorsal surface of the tongue, and margin of the tongue, was presented. Esophagus carcinoma had been treated with radiation and surgery in another hospital. Four cancers in the oral cavity were treated with chemotherapy and surgery.
Oral multicentric cancers will increase in the future, and there may be many chances to treat them. Therefore, the following are considered important for the improvement of the patient's quality of life.
1) Conservative surgery should be performed to control the oral function as much as possible in accordance with effects of preoperative chemotherapy or radiation therapy.
2) To confirm double cancers, the upper digestive tracts such as esophagus or stomach should be examined using an endoscope in patients with oral cancer.
3) Instruction about restriction of risk factor of canceration, such as smoking, drinking, etc. is necessary.
