Chung-Jansen Syndrome, also known as phip-related behavioral problems-intellectual disability-obesity-dysmorphic features syndrome, is related to syndromic intellectual disability and body mass index quantitative trait locus 11. An important gene associated with Chung-Jansen Syndrome is PHIP (Pleckstrin Homology Domain Interacting Protein). Affiliated tissues include brain and eye, and related phenotypes are intellectual disability and macrotia