How do you treat a parotid Warthin's tumor in a medically inoperable patient?  

By "medically inoperable", I would assume life limiting co-morbidities and/or poor KPS. In this situation if the tumor is asymptomatic (and only incidentally detected), I would not offer any treatment. Given that Warthin's tumors have an indolent natural history, it would be analogous to an indolent...