My friend is in the hospital right now. He's a healthy 24 year old male. 2 weeks ago, we noticed that his mood changed - - he became sadder, and he even admitted to us that he is feeling depressed and he doesn't know why. On Friday (12/7), he did not talk to any of us when we all got together. He seemed like he kept to himself, but he responded to the music on the car's radio very normally (he was "beatboxing" and moving his head to the music's rhythm). Basically, he wasn't responding to our questions, not to his best friends, and not to his family... On Sunday, his family took him to the hospital, where they ran some tests, and they came up with inconclusive results, showing spotting all over his brain, which they thought are tumors, but then they ran other tests, and the results came up as different types of brain infections. So as I'm writing this now, doctors are still running tests, trying to figure out what exactly is wrong. 6 months ago, he got a tattoo in Toronto, Canada that ran along from his lower abdomen, down to his lower thigh. Do you think that the tattoo that he got could have caused this brain infection, or brain tumor?