Yasumitsu Hirano

Influence of Anatomical Variations due to Horseshoe Kidney on Colorectal Cancer Surgery

BackgroundHorseshoe kidney is a rare renal fusion anomaly often associated with vascular and ureteral variations. Previous case reports have described technical considerations during colectomy in patients with horseshoe kidney. However, studies systematically evaluating the impac...

Prognostic Impact of Circumferential Resection Margin in Minimally Invasive Surgery for Locally Advanced Rectal Cancer: A Multicenter Prospective Study

ABSTRACT Aim Circumferential resection margin (CRM) status is a well‐established prognostic factor in rectal cancer surgery; however, its long‐term oncological relevance has not been prospectively validated in Japan, where upfront surgery has long been widely used. This study ass...