Cardiofaciocutaneous syndrome (CFC) is a rare disorder of the RAS MAPK-pathway and is characterized by dysmorphic facial appearance, hair and skin abnormalities, congenital heartdefects, growth retardation and global developmental delay. We report the clinical case of a 17 -year-old female with hemihypertrophy, lymphedema, dysmorphic features and intellectual disability in whom peripheral blood panel study for ...