Phelan McDermid syndromeTrisomy 12 mosaicbrainstem gangliogliomaGERDhydrocephalusGastrointestinal dystonia (GID)Interferential therapy (IFT)PEG-J
…leviating gastrointestinal pain and distress. A 4-year-old with Phelan McDermid syndrome, developmental delay, and hydrocephalus presented with vomiting…