Résumé
We report the case of a 58-year-old man presenting with successive development of two uncommon tumors of soft tissue in the gastric location. The initial histological examination diagnosed a gastrointestinal stromal tumor (GIST) which was treated by surgical resection. Two years later a new tissue infiltration appeared at this surgical site. Our hypothesis suggested a GIST recurrence, but histological examination and genetic analysis diagnosed a desmoid tumor. Association of these two rare tumors localised at the same site has never been described.