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 [di″ver-tik´u-lum] (pl. diverti´cula) (L.)
a circumscribed pouch or sac occurring normally or created by herniation of the lining mucous membrane through a defect in the muscular coat of a tubular organ. See illustration.
Intestinal diverticula. From Dorland's, 2000.
ileal diverticulum Meckel's diverticulum.
intestinal diverticulum a pouch or sac formed by hernial protrusion of the mucous membrane through a defect in the muscular coat of the intestine.
Meckel's diverticulum an occasional sacculation or appendage of the ileum, derived from an unobliterated yolk stalk.
pressure diverticulum (pulsion diverticulum) a sac or pouch formed by hernial protrusion of the mucous membrane through the muscular coat of the esophagus or colon as a result of pressure from within.
traction diverticulum a localized distortion, angulation, or funnel-shaped bulging of the esophageal wall, due to adhesions resulting from an external lesion.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


, pl.


(dī'vĕr-tik'yū-lŭm, dī'vĕr-tik'yū-lă), [TA] Avoid the incorrect plurals diverticulae and diverticuli.
A pouch or sac opening from a tubular or saccular organ, such as the gut or bladder.
[L. deverticulum (or di-), a by-road, fr. de-verto, to turn aside]
Farlex Partner Medical Dictionary © Farlex 2012


n. pl. diverticu·la (-lə)
A pouch or sac branching out from a hollow organ or structure, such as the intestine.

di′ver·tic′u·lar adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


, pl. diverticula (dī'vĕr-tik'yū-lŭm, -lă) [TA]
A pouch or sac opening from a tubular or saccular organ, such as the gut or bladder.
[L. deverticulum (or di-), a by-road, fr. de-verto, to turn aside]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


(di?ver-tik'u-lum) plural.diverticula [L. devertere, to turn aside]
Enlarge picture
An outpouching of the walls of a canal or organ. See: illustration

diverticulum of the colon

An outpocketing of the colon. These may be asymptomatic until they become inflamed.

diverticulum of the duodenum

A diverticulum commonly located near the entrance of the common bile or pancreatic duct.

false diverticulum

A diverticulum without a muscular coat in the wall or pouch. This type of diverticulum is acquired.

gastric diverticulum

A pulsion-type diverticulum usually on the lesser curvature of the esophagogastric junction.

diverticulum of the jejunum

A diverticulum usually marked by severe pain in the upper abdomen, followed occasionally by a massive hemorrhage from the intestine.

Meckel's diverticulum

See: Meckel's diverticulum

diverticulum of the stomach

A diverticulum of the stomach wall.

true diverticulum

A diverticulum involving all the coats of muscle in the pouch wall. It is usually congenital.

Zenker's diverticulum

See: Zenker's diverticulum
Medical Dictionary, © 2009 Farlex and Partners


An out-pouching from, or sac formation on, a hollow organ or structure, such as the bowel. See also DIVERTICULOSIS.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


any sac or pouch formed by herniation of the wall of a tubular organ or part, especially the intestines. Inflammation of a diverticulum leads to DIVERTICULITIS.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005


Small tubes or pouches that project off the wall of the intestine, visible as opaque on an x ray after the patient has swallowed a contrast (dye) substance.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

Patient discussion about diverticulum

Q. How to prevent diverticulitis? I am a 43 year old man. I just had colonoscopy and my Doctor said I have diverticulosis and am at risk in developing diverticulitis. How can I prevent developing diverticulitis?

A. You have Diverticulosis, which means you have diverticulas (small pouches) on your digestive system. These diverticula are permanent and will not go away. No treatment has been found to prevent complications of diverticular disease. Diet high in fiber increases stool bulk and prevents constipation, and theoretically may help prevent further diverticular formation or worsening of the diverticular condition. Some doctors recommend avoiding nuts, corn, and seeds which can plug diverticular openings and cause diverticulitis. Whether avoidance of such foods is beneficial is unclear. If you develop unexplained fever, chills or abdominal pain, you should notify your doctor immediately since it could be a complication of diverticulitis.

More discussions about diverticulum
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References in periodicals archive ?
Pharyngoesophageal diverticuli are not true diverticuli.
This case involves bilateral diverticuli located between the hyoid bone and thyroid cartilage with no relation to the cricopharyngeal muscle.
Diverticuli is a false pulsion diverticuli, characterized by herniation of mucosa and submucosa through the muscular layer in places of minor resistance to the intraluminal pressure typically at the mesenteric side where blood vessels penetrate the intestinal wall.
Diverticuli are usually multiple, in contrast to the congenital Meckel's diverticulum.
A study was done in consecutive patients undergoing endoscopic retrograde cholangiopancreatography (ERCP) for different clinical indications in order to study the clinical significance and outcome of the procedure in cases of duodenal diverticuli.
We found no studies that investigated the common medical advice to avoid small nuts and seeds, which are thought to cause obstruction of the diverticuli and lead to diverticulitis.
Differentiating adenocarcinoma from diverticulitis Diverticulitis Adenocarcinoma Diverticuli Present +/- Present Regionalfat Stranding Rare stranding Transition Smooth Shouldering Root mesentery Fluid No fluid Wall thickening Mild Severe Length involvement Several cm Focal Signs Comma, centipede Shouldering Lymph node None/small Present
A subsequent CT seen of her abdomen was negative, and a barium enema revealed only multiple sigmoid diverticuli. A white blood cell count at that time was 13.3 x [10.sup.9]/L (13,300 [mm.sup.3] [normal differential]).
Primary: Arising de novo secondary to other pathology such as diverticuli, strictures, neurogenic bladder or foreign bodies.
Differentiation of colonic diverticulitis from adenocarcinoma Favors diverticulitis Favors adenocarcinoma Diverticuli [+ or -] Diverticuli Stranding >wall thickening No stranding, or stranding ("disproportionate" fat stranding < wall thickening Comma sign No comma sign Centipede sign No centipede sign Fluid at root of sigmoid mesocolon No fluid Mild, smooth wall thickening Severe, irregularwall thickening Gradual transition Abrupt transition, shouldering Short (5-10 cm) segment affected Focal (<5 cm) segment affected No lymph nodes Small to large lymph nodes
The etiologic factors involved in the sialolith formation can be classified into two different groups: on one hand, saliva retention due to morpho-anatomic factors (salivary duct stenosis, salivary duct diverticuli, etc.) and on the other, saliva composition factors (high super saturation, crystallization inhibitor deficit, etc.) (7)
A total of 80 patients from surgery OPD in age group 10 to 70 years with complaints suggestive of urethral strictures, calculi, tumor, diverticuli, anterior urethral fistula, urethritis, palpable anterior urethral irregularities and ventral penile curvature.