Inflammation of a DIVERTICULUM or diverticula.

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

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

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

A pouch or sac opening from the COLON.

Opening or penetration through the wall of the INTESTINES.

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

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

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.

Pathological development in the JEJUNUM region of the SMALL INTESTINE.

The surgical construction of an opening between the colon and the surface of the body.

Tumors or cancer of the COLON.

An abnormal passage in the URINARY BLADDER or between the bladder and any surrounding organ.

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

Acute inflammation of the APPENDIX. Acute appendicitis is classified as simple, gangrenous, or perforated.

Surgical union or shunt between ducts, tubes or vessels. It may be end-to-end, end-to-side, side-to-end, or side-to-side.

An abnormal anatomical passage between the INTESTINE, and another segment of the intestine or other organs. External intestinal fistula is connected to the SKIN (enterocutaneous fistula). Internal intestinal fistula can be connected to a number of organs, such as STOMACH (gastrocolic fistula), the BILIARY TRACT (cholecystoduodenal fistula), or the URINARY BLADDER of the URINARY TRACT (colovesical fistula). Risk factors include inflammatory processes, cancer, radiation treatment, and surgical misadventures (MEDICAL ERRORS).

Surgery performed on the digestive system or its parts.

Surgery which could be postponed or not done at all without danger to the patient. Elective surgery includes procedures to correct non-life-threatening medical problems as well as to alleviate conditions causing psychological stress or other potential risk to patients, e.g., cosmetic or contraceptive surgery.

A worm-like blind tube extension from the CECUM.

Clinical management approach wherein immediate therapy is not provided but there is a period of observation during which periodic tests monitor patient and the progression of the illness. (Driffield T, Smith PC Med Decis Making. 2007 Mar-Apr;27(2):178-88)

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

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

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.

A procedure in which a laparoscope (LAPAROSCOPES) is inserted through a small incision near the navel to examine the abdominal and pelvic organs in the PERITONEAL CAVITY. If appropriate, biopsy or surgery can be performed during laparoscopy.

A condition with trapped gas or air in the PERITONEAL CAVITY, usually secondary to perforation of the internal organs such as the LUNG and the GASTROINTESTINAL TRACT, or to recent surgery. Pneumoperitoneum may be purposely introduced to aid radiological examination.

A congenital abnormality characterized by the outpouching or sac formation in the ILEUM. It is a remnant of the embryonic YOLK SAC in which the VITELLINE DUCT failed to close.

Washing out of the peritoneal cavity. The procedure is a diagnostic as well as a therapeutic technique following abdominal trauma or inflammation.

Pathological developments in the CECUM.

Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI.

Sensation of discomfort, distress, or agony in the abdominal region.

A clinical syndrome with acute abdominal pain that is severe, localized, and rapid in onset. Acute abdomen may be caused by a variety of disorders, injuries, or diseases.

Tomography using x-ray transmission and a computer algorithm to reconstruct the image.

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

Disease having a short and relatively severe course.

Breakdown of the connection and subsequent leakage of effluent (fluids, secretions, air) from a SURGICAL ANASTOMOSIS of the digestive, respiratory, genitourinary, and cardiovascular systems. Most common leakages are from the breakdown of suture lines in gastrointestinal or bowel anastomosis.

The washing of a body cavity or surface by flowing water or solution for therapy or diagnosis.

An abscess located in the abdominal cavity, i.e., the cavity between the diaphragm above and the pelvis below. (From Dorland, 27th ed)

The return of a sign, symptom, or disease after a remission.

Incision into the side of the abdomen between the ribs and pelvis.

Tumors or cancer of the SIGMOID COLON.

Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.

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.

Chronic inflammation and granuloma formation around irritating foreign bodies.

Accumulation of purulent material in tissues, organs, or circumscribed spaces, usually associated with signs of infection.

Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)

A segment of the LOWER GASTROINTESTINAL TRACT that includes the CECUM; the COLON; and the RECTUM.