Satoshi Kumagai

Revision of lymph node classification in the Japanese Classification of Esophageal Cancer and its impact on definitive chemoradiotherapy for stage IV esophageal cancer: a single-institution retrospective study.

The 2022 revision of the Japanese Classification of Esophageal Cancer reclassified certain lymph node metastases previously considered locoregional as distant lymph node metastasis. Consequently, some patients previously diagnosed with stage IVA or III disease and treated with de...