By STACI HUPP, The Dallas Morning News

Caden Ledbetter's stem cell transplant in December was a test of modern medicine. The six weeks of blood transfusions, fevers and fits that followed, all in an isolated hospital room, was a test of the Coppell toddler's spirit. In the latter battle, Caden came out a winner Monday. Doctors released the 2-year-old from Medical City Dallas Hospital, where he spent nearly two months in treatment for neuroblastoma, which is a fast-growing cancer of the nervous system...