CRP and Sepsis: Fistulas developing more than 2 weeks after surgery are difficult to differentiate from pelvic abscesses, which are only possible by means of CT, and the diagnosis of these complications (Dutch leakage, DULK) also requires the association of other inflammatory markers such as CRP, procalcitonin [13,15,16,17,18], etc. The conservative treatment uses broad-spectrum antibiotics (at least two from different classes), to which an antifungal can be added in the case of sepsis.