the OP asked me to take a look-
there is no doubt that she has a tremendous amount of material in her caudal stomach and intestines; they can be seen in the looping patterns of solid/liquid material and gas in her abdomen. it is an excellent radiograph, really top notch. as the lungs appear perfectly expanded i don’t see any evidence of free coelomic fluid.
however, i’m concerned about the area in her vertebra that i’ve put the arrows on. being an excellent rad, there appears to be some true loss of mineralization right in that lumbosacral junction. and if there is an infection or growth there that is causing that, it can also cause nerve dysunction. and that’s precisely where the nerves come off the spinal cord that innervate much of the lower GI tract.
your vet should have taken (maybe they did) a ventrodorsal view along with this lateral which would give much more information when the 2 views are put together (technically you can’t even make a call without the 2 views). and if another view repeatedly shows that loss of mineraliztion there, she may be constipated but it’s due to a more serious underlying condition.
can you forward this post/jpeg to your vet and see what they say upon review?
dr. o—