0 a small pocket that forms inside a hollow structure in the body, especially inside one of the tubes of the digestive system, because of a medical problem:
While diverticula are more common in the lower intestines, they can also appear in the upper intestines, causing pain in the upper stomach.
Increased pressure of muscle spasms can cause the inner layers of tissue, the mucosa and submucosa, to herniate through the openings, forming diverticula.
Congenital cardiac diverticulum is a rare heart abnormality.
Renal sonography may not show any evidence for a urethral diverticulum.
