Losty P.D.Lobos P.Chui C.H.Davidoff A.M.Mahidol University2024-03-212024-03-212024-01-01Journal of Pediatric Surgery (2024)00223468https://repository.li.mahidol.ac.th/handle/20.500.14594/97702The International Society of Paediatric Surgical Oncology (IPSO) was officially inaugurated in 1991 through the creativeness and inspiration of a collective dynamic group of paediatric surgeons committed to advancing childhood cancer. This article traces the origins and birth of IPSO tracking its modern day development to a growing world community of paediatric surgeon oncology members. Level of Evidence: 5MedicineReviewSCOPUS10.1016/j.jpedsurg.2024.02.0202-s2.0-8518764872515315037