Abstract
A 38-year-old woman presented to our hospital with abdominal pain and vomiting. Abdominal computed tomography revealed intestinal obstruction caused by a tumorous lesion at the terminal ileum. Colonoscopy showed an elevated lesion like a submucosal tumor in the terminal ileum. Although the bioptic diagnosis was non-specific ileitis, she had two recurrences within two months after the first hospitalization. Laparoscopic ileocecal resection with lymph node dissection was performed as a diagnostic modality during the third hospitalization. Macroscopic findings showed that the serous surface of the terminal ileum coalesced fibrously, and the mucosal side bulged outward into the ileal lumen. On histopathological examination, all layers of the tumorous lesion showed a structure similar to the uterine stroma and glands infiltrate. Thus, ileal endometriosis was diagnosed. The glandular structure was also present in the appendix and a regional lymph node (#202) .
