- An outpouching from the lumen into an area of central necrosis within a large smooth muscle tumor, along any part of the intestinal wall.
* * *pseu·do·di·ver·tic·u·lum (soo″do-di″vər-tikґu-ləm) herniation of the esophageal or intestinal mucosa and submucosa through a tear in the muscular coat. Called also false diverticulum.
Medical dictionary. 2011.