Brain Tumor Registry of Japan (2001-2004)

In 1975, the Brain Tumor Registry of Japan (BTRJ) was founded to investigate the statistical characteristics of brain tumors in Japan. The Committee of the BTRJ has published 12 reports. The 12th report of the BTRJ, which includes 82,844 primary and metastatic brain tumor cases from 1984 to 2000, was issued in 2009. Here, we publish the 13th edition of the BTRJ. This edition contains the statistical data of 16,338 patients in Japan with primary and metastatic brain tumors from 2001 to 2004. The numbers reported below are for patients under the age of 40 years old.