Sam Esquibel

A pediatric brain surgeon in Colorado found a fully developed foot in the brain of three-day-old Sam Esquibel. The surgery, performed on October 3, 2008, was scheduled after an MRI scan revealed the baby had a small tumor.Mail Online: Doctor Removes 'perfectly Formed' Foot Growing Inside Baby's Brain (December 18, 2008) Esquibel's sutures had healed by December 2008 and he was recovering from the surgery.The Denver Post: Springs Newborn Had Foot, Other Body Parts, Embedded... (December 16, 2008)

Three-day-old Sam Esquibel underwent surgery for what was thought to be a tiny benign tumor on his brain on October 3, 2008. Pediatric neurosurgeon Dr. Paul Grab instead discovered that the baby had a fully developed foot and parts of a second foot, hand and thigh in his brain.ABC News: Foot Grows in Baby's Brain (December 18, 2008)

The feet and other parts are a case of "fetus in fetu," an occurrence where a twin begins to grow within another twin. The surgeon said, "It looked like the breach delivery of a baby, coming out of the brain. To find a perfectly formed structure (like this) is unique, unusual, borderline unheard of."Mail Online: Doctor Removes 'perfectly Formed' Foot Growing Inside Baby's Brain (December 18, 2008)