rec·to·sig·moid junc·tion the site at which the sigmoid colon becomes the rectum; usually takes the form of an acute angle, demarcated externally by a discontinuation of appendices epiploicae, a spreading out of the teniae coli to completely encircle the rectum, and consequently, termination...
Cases of stage pT4b sigmoid colon cancer were screened in the SEER database by SEER‐Stat software (SEER*Stat 8.3.8). Cases of sigmoid colon cancer were retrieved based on the International Classification of Diseases for Oncology (ICD-O-3) code; namely, “Site recode ICD-O-3/WHO 2008" ...