told me upon Lexi's last visit that they did X-rays and said her heart and lungs were enlarged. Not much, but they weren't exactly normal. Is this something I should be worried about in the future?? What can cause an enlargement like that?? I just don't want something unexpected to happen or for her to suffer. The vet couldn't really give me a reason, so I was wondering if anyone else has ever had a similar problem with their cat??