We present a case of a 74-year-old white male with a history of prostate cancer with unusual metastasis to the ileum, and with ileus as a very unusual first symptom of prostate cancer. This patient presented to us with histologically confirmed metastasis of the ileum after resection in the Department of Surgery.

A 4-year-old Thoroughbred gelding underwent an explorative celiotomy for a suspected small intestinal obstruction. During surgery, an impacted diverticulum of the ileum was suspected, necessitating a jejunocaecostomy. The owner opted for euthanasia. On post-mortem examination and histopathology, a true diverticulum on the mesenteric side of the ileum, with ileal hypertrophy, was diagnosed.