{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T11:27:15Z","timestamp":1790681235787,"version":"4.1.0"},"reference-count":21,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2018,1,8]]},"abstract":"<jats:p>Granular cell tumours (GCTs) are rare soft tissue tumours originating from Schwann cells. Due to potential malignant transformation, complete endoscopic resection should be aimed for. We report on a 49-year-old patient with two synchronous GCTs found in the caecum and the ascending colon, respectively. Synchronous endoscopic full-thickness resection (EFTR) using an all-in-one full-thickness resection device (FTRD) was performed under propofol sedation. Completeness of resection was proven histologically. No adverse events occurred. 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