P-251 Multidisciplinary challenge for the oncologist and surgeon: Gastrointestinal stromal tumors. Follow-up of a tertiary surgical department

Background: Gastrointestinal stromal tumors(GISTs) are the most common mesenchymal tumors in gastrointestinal system with the most found in stomach.With the characteristic of being mostly cKIT positive (CD117) as a mutation carrier, genetics is a part in the management of GIST, helping both the surgeon and the oncologist.The diagnosis and the definition of the characteristics of tumor will help to define the response to treatment procedures, which is fundamental for creating an algorithm for patients.The follow-up should be done both with oncologists and surgeons in order to define early recurrences and metastasis.This study is based on the follow-up of GIST patients operated in a tertiary general surgery department.