Board Thread:Naruto Discussions/@comment-16064415-20140829133523/@comment-28861328-20141008234436

Also, as to the point of this thread, the theory is impossible. In both the anime and the manga, Hiruzen has a flashback of visiting Orochimaru's parent's graves with him in Konoha. Why would they:

A) Bury a Mizukage in Konoha. B) Why would a Mizukage's son be living in Konoha regardless?

Its not possible. The designs are similar. That is all.