3D Printed Intussusception of Small Bowel Due to Metastatic Tumour

3D Printed Intussusception of Small Bowel Due to Metastatic Tumour Clinical History A 66-year-old woman suffered sudden onset of severe colicky central abdominal pain, somewhat relieved by drawing up her knees. She passed a stool containing mucus and blood (“like redcurrant jelly”). On examination, there was a mass in the left hypochondrium, which hardened with each spasm of pain. The specimen was resected at laparotomy. Pathology The specimen is a segment of small bowel, approximately 20 cm in length, with attached mesentery up to 2 cm in width (more evident on the uncut aspect of the specimen). About 5 cm from the proximal surgical resection margin (which is at the left hand of the specimen), a polypoid tumour 3 cm in diameter has become invaginated into the lumen of the bowel, and has been propelled distally, forming an intussusception 13 cm in length. The tumour is seen at the apex of the intussusception (near the right hand side of the specimen). The