摘要:ANASTOMOTIC FISTULA IS A FREQUENT COMPLICATION THAT CAUSES MORTALITY AND VARIOUS MORBIDITIES, WITH AN INCIDENCE VARYING BETWEEN 6% AND 22%.THIS ARTICLE DESCRIBES A CASE REPORT OF A 51-YEAR-OLD WOMAN HOSPITALIZED FOR ASCENDANT COLON NEOPLASM FOR WHICH A RIGHT HEMICOLECTOMY WAS PERFORMED.AFTER 6 MONTHS SHE PRESENTED IN THE EMERGENCY SERVICE WITH INTESTINAL OCCLUSION AND PERFORMED SURGICAL INTERVENTION, WHICH DISCOVERED METASTASES AT THE LEVEL OF THE OLD ANASTOMOSIS AND PERITONEUM.ENLARGED ENTERECTOMY IS PERFORMED WITH ILEO-COLIC ANASTOMOSIS. IN THE 7-TH DAY OF THE SURGERY, THE PATIENT PRESENTS TO THE POSTOPERATIVE WOUND, INTESTINAL CONTENT AND IS DIAGNOSED WITH POSTOPERATIVE ANASTOMOTIC FISTULA.THE PATIENT IS TREATED USING THE ELASTIC BALLOON OBTURATION TECHNIQUE, WITH THE CLOSURE OF THE FISTULA AFTER 13 DAYS OF TREATMENT, CHANGING THE BALLOON MOUNTING 6 TIMES IN TOTAL, WITH A HOSPITALIZATION PERIOD OF 24 DAYS FROM ADMISSION TO DISCHARGE FROM THE HOSPITAL.ELASTIC BALLOON OBTURATION IS AN EFFICIENT METHOD OF CLOSING THE FISTULA, IN OUR CASE SUCCESSFULLY CLOSING ANASTOMOTIC FISTULA AFTER AN ANASTOMOSIS PERFORMED FOR A NEOPLASIA RECURRENCE WITH CARCINOMATOSIS.