It's too soon to do a biopsy. The next step would be a Protein C test, then, if needed, a scintigraphy according to Dr. Center. An invasive surgery like a biopsy should only be done as a last resort.
Depending on what the Protein C test results are, make sure your vet does a scintigraphy, not an ultrasound. According to studies done at the University of Tennessee, ultrasounds are only 80% effective in detecting a shunt. Dr. center estimates that number could be as low as 60%. A scintigraphy is about $400, but is much more accurate.
Have your vet call Dr. Center for a consultation if he is not sure how to proceed. She is very accessible and helpful.
Sharon A. Center, DVM, DiplACVIM
Professor
Department of Clinical Sciences, College of Veterinary Medicine
Cornell University, Ithaca, NY 14853
Phone: 607-253-3060 (hospital, on page), ext. 3114 - biochemistry laboratory, audex recording) |