hole in head disease

[Kevccoy]

I recently rescued an oscar, (about 6") i work maintenance in an apartment community and they moved out and I found him in the bathtub of all places, (they dumped the tank into bath tub and took the tank) well i got him home and setup the 20 gallon tank for him, and this was on him when i got him. I don't mind treating him and keeping him, because i actually have another 75 gallon tank i was gonna put 2 oscars in(or an oscar and jack dempsey...yea yea yea, i have had that combo a few times and they do just fine) anyway, before I go treating hole in head i wanted to verify with you guys, is that what it is or do you think he just got hurt from the dump?
I know, not a great pic, but he won't stay still LOL

 

[Kevccoy]

here is another pic, may be better

 

[Kevccoy]

it is like a white sore, not so much a hole, but i am no expert on what hole in head looks like

 

[Tropical boy]

Did this appear on the fish recently