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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 ?
Two holes were made with a 4-mm inner diameter, 6-mm outer diameter bone trephine into the right nasal diverticulum of the infraorbital sinus of the maxillary bill, and a 1.8-mm, 12-cm 0[degrees]-angle telescope (Richard Wolf GmbH, Knittlingen, Germany) was used to visualize inside the sinus (Fig 5).
Surgical or endoscopic interventions should only be reserved for symptomatic diverticulum [23].
The treatment of choice for the symptomatic MD is the surgical resection, either by the diverticulectomy (wedge resection) or by the segmental bowel resection and anastomosis based on the size of base and length of diverticulum. Resection and anastomosis are also done in palpable ectopic tissue at the diverticular-intestinal junction, intestinal ischemia, or perforation.
Three partially reduced cases were detected to have a fibrotic band among the diverticulum and hernia sac.
Meckel's diverticulum is a well-known congenital state that results in an inflammatory process and pe rforation due to various factors.19,20 Marked social or development differences in this condition should not be expected because of its congenital nature.
Surgical management is needed in the case of a large diverticulum or complications involving bleeding, perforation, or malignancy (4).
An echocardiogram probe was placed directly on the diverticulum and demonstrated contractile muscle and blood within the cavity.
Carcinoma in a calyceal diverticulum is extremely rare, with only 16 cases reported in the literature, to our knowledge.
Subsequent steps were carried out as described previously.[sup][3],[10],[22] After stone removal, the diverticular orifice was dilated or incised, the wall was then fulgurated and a ureteral stent (6.0 Fr) was inserted from the diverticulum into the ureter, and a drainage tube placed in the diverticulum.
Unfortunately, in the present series, the exact relation of the diverticulum and the papilla was not always noted explicitly in the endoscopy reports.