Hi and welcome to HCM.
This doesnt sound like bowel peroration but it is probably tmour mass in abdominal or pelvic cavity
. Bowel perforation would manifest in different way. She would have diffuse intensive pain with fever
and general symptoms. It is to expect that she ll have defecating disorders and opstipation,but this all is part of her primary disease and this is not in your hands. Only colostomy
could be performed for normal stool passage. WIsh you good health.