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An abnormal outpocketing or sac on the wall of a hollow organ.



a pouch formed by the congenital or acquired protrusion of the wall of a tubular organ in man. Most frequently encountered are diverticula of the esophagus or urinary bladder and more rarely, of the duodenum or stomach. Congenital diverticula are associated with defects in the development of the organ. Acquired diverticula arise as a result of pressure from the organ cavity on its wall, which has been weakened either by a pathological process (trauma, inflammation), or they may result from congenital muscular weakness of the wall (pouch-like protrusion). Diverticula may develop when diseases of neighboring organs result in a pulling on the organ wall by cicatrices and adhesions (funnel-shaped protrusion). After it has entered a diverticulum, the content of an organ is retained there for some time; later the diverticulum is evacuated. The diverticulum gradually stretches and becomes enlarged, and evacuation becomes difficult. The stagnant content irritates the mucous membrane of the diverticulum and becomes infected. Inflammation of the walls of the diverticulum develops—diverticulitis (catarrhal, ulcerative, or phlegmonous; perforation of the diverticulum is possible). A diverticulum of the esophagus may manifest itself by difficulty of food passage and vomiting and a diverticulum of the urinary bladder, by difficulty in urinating. An intestinal diverticulum sometimes causes obstruction. Treatment depends on the site and the course of the illness; in some cases surgery is necessary.

References in periodicals archive ?
WASHINGTON -- Patients with diverticular disease can most likely eat high-fiber foods like corn, nuts, and popcorn without fear of symptom aggravation, a large prospective study suggests.
Urinary stasis in these areas may induce chronic mucosal irritation and prolong exposure to urinary carcinogens; hence, the predisposition of the diverticular urothelium to a malignant degeneration.
Diverticular size as determined by cystogram measurements was available in a large proportion of cases (n = 47; 66%).
Diverticular problems ( this is where the outer layer of the wall of the large intestine (colon) is weaker in some areas than in others.
And you are at high risk of developing bowel cancer and diverticular disease, which is the development of pouches in the lining of the intestines due to a build up of pressure in the large bowel from years of constipation.
Bowel conditions such as Diverticular Disease are less prevalent among veggies, while they are half as likely to develop gall stones and they are less likely to develop kidney stone problems.
An exploratory laparotomy revealed significant diverticular disease of the sigmoid colon, and a perforation that had apparently sealed off.
I don't mean giving up all its food technology-it is all good-but in general proportion of food, going back to what Americans did in the second half of the last century, before they even learned about coronary heart disease, diverticular disease, bowel cancer, and all of those problems.
His past medical history included diverticular disease, controlled hypertension, recurrent urethral strictures and a splenectomy 20 years previously following a road traffic accident (RTA).
2 Rich in fibre: They contain high levels of insoluble fibre, which help to promote a healthy digestive system and prevent certain diseases, such as diverticular disease.
Accuracy of computerized tomography in diagnosis of colovesical fistula secondary to diverticular disease.