To be honest this wasn't even the fattest of the fats. I would guess she was about or just under 300 pounds, with a huge fupa, the fupa probably being about 1.5 of a normal human waist (that's not including her actual waist size)  But some people are just getting to fat for regular human imaging and they would literally need to go to a zoo and be exposed to stronger radiation from CT scans or x-rays... I remember watching some kind of documentary or show about it, and one doctor actually referring people to the zoo and the zoo was like uh no.... (can't remember what I watched now)  I also remember having one patient with a fever and abdo pain. She was only in her 30s and she was probably closer to 400 pounds. Basically, CT scan couldn't penatrate her abdomen, and they suspected a possible infection (if I remember kidneys). Basically the doctor was like fuck it here are some antibiotics and hope for the best.