Yes, absolutely. The entire focus on 'personal salvation' and saving one's 'soul'; it's one of the purest forms of egotism in existence.
I actually don't believe that Christianity has anything to do with egotism. As far as I know it's the only belief system that states there are no works we can do to attain or maintain our own salvation.
In fact, Ephesian 2:8,9 states:
For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast.OK here is the definition of solipsism:
sol·ip·sism (slp-szm, slp-)
n. Philosophy
1. The theory that the self is the only thing that can be known and verified.
2. The theory or view that the self is the only reality.
Christianity does not embrace that the self is the only thing that is real or can be known. In fact, Christianity teaches that God is real and can be known personally.