A case just came out regarding a 4 month old infant who had a rare brain tumor (benign) that actually had three teeth growing in it as reported by the New England Journal of Medicine. A good layman's summary of the article can be found here: http://www.dailymail.co.uk/health/a...d-teeth-growing-inside-BRAIN-rare-tumour.html I see that other tumors can do the same thing. Here's another link showing a 1600 year old corpse that had teeth growing in a tumor inside this woman's pelvis. I wonder why teeth would form as part of a brain tumor? Or any tumor for that matter. Any idea how cells could start turning into teeth in the middle of a tumor? Is some part of the DNA 'switched on' that starts producing teeth? Are other body parts ever found inside tumors such as bones, toe-nails, eyeballs ??? I wonder if this is telling us something about tumors we don't understand yet.