In the episode of the Simpsons where Abe needs a kidney transplant, Dr. Hibbert faked the x-rays showing that Abe's kidneys exploded.

1: It is both medically impossible and physically impossible for the kidneys to explode becuase you held it on too long. The blader exploding is more likely, but even then most people would involuntarily piss themselves well before getting to that point.

2: Part of the conflict of the episode is that the hospital actively withheld information from Homer regarding the risks and side effects of donating a kidney until the last minute, causing him to panic and run away. This is blatant a violation of medical ethics and I'm pretty sure also a crime.

3: At the end of the episode, Dr. Hibbert just flat out steals Homer's kidney while Homer is very, very badly injured. This could have easily killed Homer, and is definitly illegal.

We are flat out told that this process drastically shortened Homer's life to put a slight extension on Abe's.

Since Dr. Hibbert practiced unethical, manipulative, and flat out illegal tactics to get Homer's kidney for Abe, I find it highly plausible that while checking over Abe for damage after the "loud popping" sound that Abe's body made, he realized that Abe's kidneys were failing and falsified records to try and save his patients life.