A neurinoma of the terminal ileum was discussed. It was as large as an infants head and had descended to the lesser pelvis where it became lodged. An intestinal loop became clamped by this mass causing ileus. The mass also compressed theurinary bladder producing dysuria. Even though the neurinoma is quite a rare phenomenon in clinical practice, it deserves attention because of the difficulty with which it can be diagnosed, and because of the complications it can cause; Among them ileus, and hemorrhaging are the most common. Acute peritonitis due to perforation of the infected pseudocysts in the center of the tumor is a significantly rarer phenomenon, and malignant alterations are the rarest complications. As only a few cases of neurinomas of the small intestine have been described in world literature, the authors hope to contribute to a better understanding of this problem.