A Resected Case of Low-Grade Appendiceal Mucinous Neoplasm after Simultaneous Kidney-Pancreas Transplantation

Abstract

The patient was a 55-year-old man who had undergone simultaneous pancreas-kidney transplantation from a brain-dead donor. Follow-up CT 5 years after the transplantation revealed a cystic lesion just above the pancreatic graft in the right iliac fossa. MRI showed that the cystic lesion derived not from the pancreatic graft, but from the vermiform appendix, suggesting appendiceal mucinous neoplasm. Ileocecal resection with D2 lymph node dissection was completed, without injuring the pancreatic graft. Histological diagnosis demonstrated low-grade appendiceal mucinous neoplasm. This is the first report of low-grade appendiceal mucinous neoplasm after pancreatic transplantation.