A pathological condition characterized by the presence of a number of COLONIC DIVERTICULA in the COLON. Its pathogenesis is multifactorial, including colon aging, motor dysfunction, increases in intraluminal pressure, and lack of dietary fibers.

A pouch or sac opening from the COLON.

A pouch or sac developed from a tubular or saccular organ, such as the GASTROINTESTINAL TRACT.

Inflammation of a DIVERTICULUM or diverticula.

Pathological development in the JEJUNUM region of the SMALL INTESTINE.

An organ of digestion situated in the left upper quadrant of the abdomen between the termination of the ESOPHAGUS and the beginning of the DUODENUM.

A pathological condition characterized by the presence of a number of GASTRIC DIVERTICULA in the STOMACH.

Inflammation of the COLONIC DIVERTICULA, generally with abscess formation and subsequent perforation.

A pathological condition characterized by the presence of a number of ESOPHAGEAL DIVERTICULA in the ESOPHAGUS.

A compound used as an x-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield.

A segment of the COLON between the RECTUM and the descending colon.

A solution or compound that is introduced into the RECTUM with the purpose of cleansing the COLON or for diagnostic procedures.

Pathological processes in the COLON region of the large intestine (INTESTINE, LARGE).

Opening or penetration through the wall of the INTESTINES.

Production or presence of gas in the gastrointestinal tract which may be expelled through the anus.

Saccular protrusion beyond the wall of the ESOPHAGUS.

Pathological processes in the SIGMOID COLON region of the large intestine (INTESTINE, LARGE).

Endoscopic examination, therapy or surgery of the luminal surface of the colon.

Tumors or cancer of the STOMACH.

Bleeding in any segment of the GASTROINTESTINAL TRACT from ESOPHAGUS to RECTUM.

INFLAMMATION of the PERITONEUM lining the ABDOMINAL CAVITY as the result of infectious, autoimmune, or chemical processes. Primary peritonitis is due to infection of the PERITONEAL CAVITY via hematogenous or lymphatic spread and without intra-abdominal source. Secondary peritonitis arises from the ABDOMINAL CAVITY itself through RUPTURE or ABSCESS of intra-abdominal organs.

Diseases that do not exhibit symptoms.

Any impairment, arrest, or reversal of the normal flow of INTESTINAL CONTENTS toward the ANAL CANAL.

Excision of a portion of the colon or of the whole colon. (Dorland, 28th ed)

The segment of LARGE INTESTINE between the CECUM and the RECTUM. It includes the ASCENDING COLON; the TRANSVERSE COLON; the DESCENDING COLON; and the SIGMOID COLON.

Discrete tissue masses that protrude into the lumen of the COLON. These POLYPS are connected to the wall of the colon either by a stalk, pedunculus, or by a broad base.

Pathological processes involving the STOMACH.

The remnants of plant cell walls that are resistant to digestion by the alimentary enzymes of man. It comprises various polysaccharides and lignins.

Abnormal formation of blood vessels that shunt arterial blood directly into veins without passing through the CAPILLARIES. They usually are crooked, dilated, and with thick vessel walls. A common type is the congenital arteriovenous fistula. The lack of blood flow and oxygen in the capillaries can lead to tissue damage in the affected areas.

The blind sac or outpouching area of the LARGE INTESTINE that is below the entrance of the SMALL INTESTINE. It has a worm-like extension, the vermiform APPENDIX.