Firstly, these things should be consulted with a Doctor. It's impossible for anyone on here to make any diagnosis
I'll give you some ideas/opinions:
MOST IMPORTANTLY, I didn't notice a DRE-Digital rectal exam scan. This should be done. The doctor will examine the abdomen for hardening mass in this exam. Or perhaps a sigmoidoscopy or colonoscopy. However, you noted that there was no stool in the colon w/the X-ray, so the colonoscopy may not be effective.
If she does take the laxative, she can excrete; have the doctors tested her stool?
What is her diet and I mean on the dime? Make sure you start making a list of what she is eating daily to the dime. --If her diet lacks fiber, this could be a viable option/also dehydration can aid in this as well. She needs to be drinking A LOT of liquids, especially since she isn't abled to eat much.
Again, consult her doctor and do some research, man. Webmd is an awesome source of information. The best thing for a patient is to arm themselves with knowledge.
I hope everything works out for you guys.
