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BACKGROUND: In our surgical daily activity, we report the observation of rare tumour as Gastrointestinal Stromal Tumours (GIST). We report the incidence and behaviour of new cases of GIST operated in our Center during the last decade, from 2008 to 2018 and here we also describe the concomitant observation of a second gastroenteric tumor.
METHOD: We have examined all the case files and histological examinations of patients with CD 117 positive GISTs treated in our Institute from 2008 to 2018. We have gathered data regarding clinical symptoms at the time of diagnosis, tumour site, type of surgery performed, tumour size, histopathological data and follow up data.
RESULTS: We have analysed 950 cases of patients who underwent surgery for gastrointestinal neoplasia in our department from 2008 to 2018. We have found 12 cases affected by GIST and in 4 cases it was also a second tumour. In two cases GIST were incidentalomas and in the others two patients a second tumour was incidentally observed in primary GIST.
CONCLUSION: Patients with GIST run the risk of developing a second neoplasm, nearly twice as high as the general population with a negative impact on survival; also, incidental GIST is often observed requiring a better molecular characterization for the high risk of developing second neoplasms with the aim of achieving an early diagnosis.