There are three main forms of carnitine palmitoyltransferase type II deficiency (CPT-II), which differ in their age of onset: an extremely severe form in newborns (neonatal), a severe form in babies and young children, and a mild form in adults. Most individuals with CPT-II have the “classic” adult form. Classic CPT-II has different signs than CPT-II in babies or children - See more at: http://www.babysfirsttest.org/newborn-screening/conditions/carnitine-palmitoyltransferase-type-ii-deficiency#sthash.bDlN8zPp.dpuf