Indocyanine green fluorescence-guided laparoscopic colorectal cancer surgery with prophylactic retrograde transileal conduit ureteral catheter placement after previous total cystectomy: a case report

摘要

Preoperative computed tomography. a Computed tomography (CT) confirms colon dilation with fecal impaction from the ascending colon to the sigmoid colon (yellow arrowhead) and wall thickening in the sigmoid colon (red arrowhead). b CT colonography demonstrates that the left ureter was near the sigmoid tumor (yellow arrow)