Ok, my mom worked at Allegheny General Hospital in the early days of WWII.   She said she'd heard just about eveything, including the sickest joke I know.

Did you hear that the proctologist is doing tonsillectomies in Germany?

Yeah, well the Jews aren't allowed to open their mouths there.

It's dated of course but still in the worst possible taste.

While she was there, a pathologist was doing an autopsy on a stillborn baby. Someone asked him how the baby died, and, with typically sick medical sick medical wit, the pathologist said the baby fell down an elevator shaft. Some days later there was an investigation into babies falling down elevator shafts in the hospital.