Diverticulum of large intestine

**Definition:** This is a morphological condition in which typical pulsion type of consisting of a pouch of mucous membrane (including muscularis mucosae) projecting through and beyond the circular muscle layers of the bowel wall so that they come to lie in the pericolic fat and appendices epiploicae. Each pouch is called a diverticulum. The condition of having multiple diverticula with symptoms, or with inflammation is excluded from here.