Spot on my Naso any ideas

[Jonesy156]

Picked up this Naso yesterday was thinking the small spot was stress when i got it home now its gotten bigger
anyone have an idea of what it is

Thanks

 

[Salty Cracker]

I think that small spot in the pictures is a naso tang.  Hard to be sure. 

 

[Jonesy156]

cant figure out how to make the pics bigger?