Synchronous occurrence of colonic intraepithelial neoplasia and small bowel stromal tumour

We report the diagnosis of synchronous gastrointestinal stromal tumours affecting the small bowel and intraepithelial neoplasia of the colon in a 52-year-old patient. After surgical resection of the two tumours outcome was favourable. We discuss the causality of this association, based on a literature review of the few previously published cases