[jAZ]

Holy weirdness.



http://www.thedenverchannel.com/heal.../detail.html#-

Sam was delivered on Oct. 1, within hours of an ultrasound that showed what appeared to be a tumor developing in the brain of the fetus. Three days later, Grabb performed the surgery to remove it.

The reason for the strange growth was not clear at first. It was thought to be a teratoma -- a congenital brain tumor composed of foreign tissue such as muscle, hair or teeth -- or a fetus in fetu, which is a developmental abnormality in which a fetal twin begins to form within the other.

Grabb, the only pediatric brain surgeon in southern Colorado, said that the formal pathology report identified the mass as a teratoma because of how perfectly formed the structure was but there is a fine line between that and the fetus in fetu.

"So it's unclear if a fetal twin began to form within another," Grabb said.