Marques dos Santos, FAfonso, ISoares, ECarneiro, R2024-08-132024-08-132024GE Port J Gastroenterol . 2023 Oct 20;31(3):217-220http://hdl.handle.net/10400.17/4977engChoristomaEctopic tissueEsophageal stenosisHDE GAS PEDHDE IMAChondroepithelial Choristoma: A Rare Cause of Congenital Esophageal Stenosisjournal article10.1159/000534081