Prof. Koichi Ichimura’s research focuses on genomic analysis, molecular diagnosis and development of novel therapy for pediatric and adult malignant brain tumors. He currently holds the position of Specially Appointed Professor at the Department of Pathology, Kyorin University Faculty of Medicine, Tokyo, since April 2024. His specialty in pediatric neuro-oncology is central nervous system germ cell tumors (CNS GCT). He organized a nationwide consortium for CNS GCT genome analysis (iGCT Consortium) to collect over two hundred tumor tissue samples and patients’ information from CNS GCTs and published several key papers in this field. He provides molecular diagnosis for pediatric brain tumors as a part of the central diagnosis in Japan’s Children’s Cancer Group (JCCG). He is currently running a molecular profiling of over 2,000 adult gliomas enrolled in clinical trials organized by The Brain Tumor Study Group (BTSG) of the Japan Clinical Oncology Group (JCOG).