Distinguishing feline IBD from intestinal lymphoma requires biopsy and creates a profound welfare challenge, as the two conditions require different treatments with markedly different prognoses.
The diagnostic dilemma between feline IBD and lymphoma creates real welfare consequences: under-treatment of lymphoma allows disease progression, while aggressive chemotherapy for what turns out to be IBD exposes cats to unnecessary treatment burden. Many owners and veterinarians choose empirical treatment rather than definitive biopsy, accepting diagnostic uncertainty to spare cats the surgical risk. Honest discussions about the limitations of non-invasive diagnostics and the implications of the treatment choice for each diagnosis help owners make decisions aligned with their cat's welfare and their own values.