Abstract
A 69-year-old woman presented to our hospital because of lower abdominal pain and vomiting in April 2016, who had had recurrent bouts of the similar symptoms and repeatedly visited our hospital since 2011. An abdominal CT scan showed a hyper-vascularized tumor 20 mm in longer diameter, dilatation of the intestine proximal to the tumor, and regional lymph node swelling. An inspection of a previous CT scan taken 5 years earlier confirmed the similar tumor and regional lymph node swelling. Since passage disturbance had already developed by the small bowel tumor, we determined the patient to be a candidate for laparoscopic surgery. The tumor had invaded outside of the serosa and we confirmed peritoneal dissemination in the pelvic cavity and diaphragm. We performed partial ileectomy together with regional lymph nodes dissection. The histopathological diagnosis was neuroendocrine tumor (NET) of the ileum, G2 (pT4N1M1 stage IV).
We present a case of ileal NET which could eventually be diagnosed after a 5-year observation period that allowed peritoneal dissemination leading to an incurative resection, with a review of the literature.
