Went out today for about an hour after work to try out my new Powell 683c (which I love).

Anyhow, first 10 minutes I was there was on fire. 3 dink LM and a small northern (about 14").

The second LM I pulled out looked disgusting. It had 2 or 3 red goozing boils like canker sores on its lips and another near its eye. I have never seen this. I wish I had brought my camera so I could have imaged it. I have pulled plenty of bass out of this lake with no issues (Lake Mendota, Madison WI). I know there is a high mercury content in some of the 70' + areas of the lake but I'm pretty sure that has nothing to do with it.

Anyone seen anything like this? Possible things it could be? Should I report it to the DNR?

Don't worry to much about it unless you start seeing it in multiple fish. I could be a number of things from a parasite to a lack of something in it's diet.

Agreed, i highly doubt it is a major epidemic or anything like that! Bass can be big on parasites around my areas.