My sweet Christian was born with a rare condition called a Giant Congenital Melanocytic Nevus. Only 1 in 500,000 babies are born with GCMN and only about 1 in 6 develop malignant melanoma as a result. I guess you could say Christian was one in a million in a lot of ways. This condition is one of over 6000 diseases/conditions that are considered rare!!! 350 million people are affected by rare disease.