抄録
Seventy seven cases of pharyngolaryngoesophagectomy were studied from clinicoanatomical standpoints. Five year survival ratio is 44% in cricopharyngeal type, 33% in pharyngoesophageal type and 0% in cervical esophagus type. Approximate 70% of dead cases were due to local recurrence and 30% lung cancer or other causes. The expansion of carcinoma under the mucous membrane is 11mm upward on the average and 5mm downward. It means that the dissection of the tumor must be done 2cm above and 1cm below the visible tumor. The paratracheal lymphnodes, the regional ones of the cervical esophagus, must be dissected completely and very carefully. The results of surgery done under these consideration improved by about 15% in 5 year survival ratio, that is 36%.
