Intestinal Polyp and Invagination/Lymphoma Intestinal Wall and Invagination (Symptomatic Intussusception)

anus_16a_n.jpg: Operative findings in a 1.7-year-old boy with a history of recurrent loss of mucus and blood by the anus. Following enterotomy a large mass emerges from the lumen. It is a large polyp which has led to an acute intussusception. The diameter of this spherical polyp corresponds to half the diameter of the intestinal lumen. A histological work-up is always indicated even if the clinical findings support a benign juvenile polyp. anus_16b_n.jpg: Also in this case of a toddler acute abdominal colics and vomiting were present analogously to anus_16a_n.jpg , but became threatening within a few weeks; the passage of blood by the anus was less distinct. Gastrointestinal contrast x-ray demonstrated a stop in the small intestine. Intraoperatively, a segment of the small intestine was invaginated in the distal part. The cause of the chronic intussusception was a malignant lymphoma of the wall of the small intestine. Therefore, intestinal polyps and malignant intestinal tumors may lead to mucus and blood in the stool as well as to intussusception which itself may also lead to signs and symptoms of ileus and to mucus and blood in the stool.