Diverticulum Totally Explained

Everything about Diverticulum totally explained

A diverticulum (plural: diverticula) is medical term for an outpouching of a hollow (or a fluid filled) structure in the body. It usually implies that the structure isn't normally present, for example pathological. However, embryologically, some normal structures begin development as a diverticulum arising from another structure.
An alphabetical listing of some frequently encountered diverticula follows:

Pathological

Bladder diverticulum: Balloon-like growths on the bladder commonly associated with a chronic outflow obstruction, such as benign prostatic hypertrophy in older males. Usually found in pairs on opposite sides of the bladder, bladder diverticula are often surgically removed to prevent infection, rupture, or even cancer.
Cardiac diverticulum: A very rare congenital malformation of the heart that's usually benign
Colonic diverticula: These can become infected (see diverticulitis) and can perforate, requiring surgery
Diverticulum of Kummerall: unusual nomenclature, in that focal dilatations of a blood vessel are properly referred to as aneurysms
Duodenal & Jejunal diverticul(um|a): congenital lesions, may be a source of bacterial overgrowth, may perforate and may result in abscesses
Epiphrenic diverticulum: due to dysfunction of the lower esophageal sphincter, as in achalasia
Killian-Jamieson diverticulum
Meckel's diverticulum: a persistent portion of the omphalomesenteric duct present in 2% of the population
Rokitansky-Aschoff sinuses: in the gallbladder due to chronic cholecystitis
Traction esophageal diverticulum: due to scarring from mediastinal or pulmonary tuberculosis
Urethral diverticulum: congenital in males, post-infectious in females
Zenker's diverticulum: a diverticulum of the mucosa of the pharynx affecting adults

Embryological

The Kidneys, originally diverticula in the development of the urinary and reproductive organs

The lungs, originally diverticula forming off of the ventral foregut.

The thymus appears in the form of two flask-shape diverticula, which arise from the third branchial pouch (pharyngeal pouch)of the endoderm.

Footnotes

Further Information

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