Analysis of secondary endpoints Secondary analyzes will cover the evaluation of time in the events of death, disease and local recurrence, the description of preoperative treatment, morbidity and frequency of patients without stoma and their association with type of surgery, correlation between mCR or cCR and the pCR, the association between clinical factors and preoperative treatment and surgical and pCR and the impact of the type of surgical treatment on intestinal function, fecal continence and quality of life.