Monsters don't just live in our imaginations. This one was actually living in a girl's head. The new season of Animal Planet's 'Monsters Inside Me' debuts Sunday with this horrifying case of mysterious lesions that appeared on a child's scalp. The show explores parasites, microscopic organisms, and other creatures that can wreak havoc on our immune systems and surprise even seasoned doctors. InsideEdition.com's Mara Montalbano (https://twitter.com/MaraMontalbano) has more.