Comprehensive Registry of Esophageal Cancer in Japan, 2008

Abstract

We deeply appreciate the great contributions of many physicians in the registry of esophageal cancer cases. The Comprehensive Registry of Esophageal Cancer in Japan, 2008, was published here, despite some delay. The registry complies with the Act for the Protection of Personal Information. The encryption with a HASH function is used for ‘‘anonymity in an unlinkable fashion’’. We briefly summarized the Comprehensive Registry of Esophageal Cancer in Japan, 2008. Japanese Classification of Esophageal Cancer 10th and UICC TNM Classification 6th were used for cancer staging according to the subjected year. A total of 4925 cases were registered from 257 institutions in Japan. Tumor locations were cervical: 5.3 %, upper thoracic: 12.0 %, middle thoracic: 48.7 %, lower thoracic: 25.3 % and EG junction: 5.9 %. Superficial carcinomas (Tis, T1a, and T1b) were 35.3 %. As for the histologic type of biopsy specimens, squamous cell carcinoma and adenocarcinoma accounted for 89.3 % and 4.3 %, respectively. Regarding clinical results, the 5-year survival rates of patients treated using endoscopic mucosal resection, concurrent chemoradiotherapy, radiotherapy alone, chemotherapy alone, or esophagectomy were 85.7, 24.1, 23.4, 4.8, and 53.1 %, respectively. Esophagectomy was performed in 2657 cases. Concerning the approach used for These data were first made available on December 25, 2014, as the Comprehensive Registry of Esophageal Cancer in Japan, 2008. Not all the pages are reprinted here; however, the original table and figure numbers have been maintained.