In a living donor with persistent abdominal pain and new ascites on POD6 despite a 'normal' Doppler ultrasound, what discordant imaging findings or lab patterns prompt you to escalate to CT venography/angiography (or invasive venography) to rule out hepatic venous outflow obstruction?

Most liver transplant programs perform routine surveillance Dopplers on the first day or two post-operatively, looking for thrombosis, which is a risk post-live donor surgery, especially if there are concerns about functional graft volume. I would be concerned in this case for either an inflow or an...