my boyfriend has a one year old pit named Sid. I love him so much and i feel i don't know nearly enough about his breed. I recently noticed a lump on his ear and i have no idea what it could be. it is slowly getting larger, it looks like there could be some blood in it and it is almost a black color on top. i'm hoping someone could shed some light on what the problem might be we cant afford a vet visit right now.