My MC is at the hospital and she has some mysterious flesh problem that has essentially made a nasty looking green-black hole in her skin.
One of the doctors is going to say something that, somehow, implies that she has too much body fat for them to really tell the extent of the problem.
Now I need any, any, any vaguely believable reason why fat would distort their ability to measure the severity of this.
I've googled various combos of fat, injury, distort, distortion but haven't found anything. This is present-day, btw, so the scientific answer, sadly, does not involve wizards.