OK, so I'm guessing it probably won't be a question on the term final, and hopefully not on Step 1 either, but it's pretty "cool" (depending on your definition of "cool") regardless. Fetus in fetu is a teratoma in which a congenital twin begins to grow inside of the other. It's very rare, but wouldn't you know it, it just happened in Colorado. I've included a link to the article, as well as a link to a picture of the "foot in the brain." I decided to make the picture a popup instead of plastering it on the front page to prevent those who are inclined to losing their lunch all over their laptop at "graphic" images from doing so.
COLORADO SPRINGS, Colo. -- A Colorado Springs family is part of one of the strangest cases in medical history.Dr. Paul Grabb, a pediatric brain surgeon, said he was surprised when he discovered a small foot growing inside the brain of 3-day-old Sam Esquibel."The foot literally popped out of the brain," Grabb told TheDenverChannel Wednesday.