There's a small population of Lithobates Clamitans near my house, and I've noticed a certain specimen has a small lump above her right tympanum. It's a bit lighter than the surrounding tissue, and it's very small (2-3 millimeters in length with about the thickness of a quarter). I've attached an image of her, although the picture quality isn't great. I was wondering if this was some kind of cancerous growth, or nothing to be worried about? I'm certainly an amateur when it comes to amphibians, so any info would be greatly appreciated.