Our ol guy (Frisco) had to have surgery for a suspected blockage in his intestine....turned out there was nothing there
....but they didn't like the look of his Liver and did a biopsy...turn out he was diagnosed with Chronic Hepititas of the Liver....been on meds for years since (at least 4 years)...he's fine on that front. Codi, our 8 year old suddenly couldn't urinate, had 5 Stones removed surgically....he's also been great since (8 months), so your guy should do just fine