The CT showed, as we already knew, that Abbe only has one developed kidney. On the other side there’s some sort of rudimenatry kidney. Luckily us humans are so cleverly constructed that we have spare parts for some of our organs. The kidneys, for instance. You can manage well with just one. The tricky part being that there’s no spare one, in case you might need it.
Anyway, the kidney Abbe does have seems to be in working order, and the kidney specialist (I’ve lost count of all the specialists by now) had no concerns.