Thitiporn JunhasavasdikulNichanan RuangwattanapaisarnSani MolagoolChatmanee LertudomphonwanitNongnuch SirachainanNoppadol LarbcharoensubMahidol University2018-12-112019-03-142018-12-112019-03-142016-10-01Clinical Case Reports. Vol.4, No.10 (2016), 962-967205009042-s2.0-85049415186https://repository.li.mahidol.ac.th/handle/20.500.14594/41096© 2016 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd. Immature gastric teratoma is an uncommon germ cell tumor of the stomach. We report a rare case of immature gastric teratoma in an infant with down syndrome with clinically presenting with hematemesis and severe anemia. Complete surgical resection remains the cornerstone of treatment.Mahidol UniversityMedicineArticleSCOPUS10.1002/ccr3.654