: : The corporeal form is an irrelevance, a Maiar is spirit in essence, and the corporeal form it takes is not of the same intrinsic/essential quality as a Man or Dwarf or Hobbit (Elves are a little more complicated)
: : The point is, when the ring was cut from the hand, Saurons spirit which inhabited it (that part of his spirit anyway) was torn from him, and his essence fled in pain and fear. Whatever if anything was left behind is irrelevant - it was not Sauron anymore in any way shape or form.

: You are correct that to the overall scheme of ME that Saruon's corporeal form is irrelevant, but so too are dwarf wings and ent ears. ;)

: It does, however, remain a question, and one worthy of discussion as Sauron seems to be impacted by the loss of his corporeal body, to the point that he did not, or could not, reform one of his fingers. Whether or not the body left behind by Sauron was "not Sauron anymore in any way shape or form" was never asked. What began this thread was what became of the body?

: -RR

What happened to the body? There would be no body. Sauron's body(form), corporeal or otherwise, was maintained by his spirit. Once his spirit fled the form, the form would cease to exist. It would either crumble,like Saruman's, or simply vanish.

While the loss of his body did weaken Sauron's spirit, the loss of his spirit within the Ring weakened him even more. Following the destruction of his body during the downfall of Numenor, he possessed the Ring and took a new form far more quickly than he did following the loss of the Ring.

As I say, in my reply above, I believe it was his spirit trapped in the Ring that prevented him from taking a complete,in this case ten fingered, form.
~Aelmer