Incidental micro-GIST found on post-sleeve gastrectomy. A case report and literature review

Gastrointestinal stromal tumours (GIST) are the most common type of primary mesenchymal tumour within the wall of the gastrointestinal tract. They are usually derived from a mutation of the KIT or PDGFRA genes. The most common sites of GISTs are the stomach and small intestine. Presentation may include local symptoms, such as nausea and vomiting, GI bleeding and abdominal pain. Approximately 25% of GISTs are found incidentally during radiological investigations and 0.7% of resected specimens in bariatric procedures show an incidental GIST. Here we report a case of an incidental micro-GIST found on a post-sleeve gastrectomy specimen.