ABC News Specials Medical Mysteries Series-Episode #4

Medical science has progressed exponentially in recent times, but scientists are still left with unanswered questions when it comes to the human body. "Medical Mysteries" looks at some of the rarest disorders and syndromes in medicine today. DNA is typically a reliable way to prove a relationship, but 30 documented cases of a rare condition show that sometimes DNA testing is not foolproof. ABC News reports on two women who are told that they are not the mothers of their children - that their genetic code proves they can't be related. Next, ABC News reports on a disturbing disease that turns normal muscle - the muscles of the neck and arms and chest and legs - into normal bone. At the age of two, Hayden Pfeif's parents noticed a swelling in his head on a camping trip - then Hayden became unable to move his neck. Strange masses were forming on the toddler, and doctors were doing a biopsy when a nurse noticed that his big toes were malformed -- a symptom of a condition called FOP. With only 2500 cases known worldwide, Hayden's doctors hadn't heard of fibrodysplasia ossificans progressiva (FOP), where normal skeletal muscle and normal connective tissue progressively turns into bone. Finally, ABC News reports on a condition, where senses blend with each other in unusual ways. From a woman can see distinct colors for the musical notes she plays to a pub owner who tastes processed cheese when he gives customers their change, the report features several people whose brains "crosswire" their senses.

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