Pathological processes in the SIGMOID COLON region of the large intestine (INTESTINE, LARGE).
A segment of the COLON between the RECTUM and the descending colon.
Tumors or cancer of the SIGMOID COLON.
A twisting in the intestine (INTESTINES) that can cause INTESTINAL OBSTRUCTION.
Inflammation of the COLONIC DIVERTICULA, generally with abscess formation and subsequent perforation.
A pouch or sac opening from the COLON.
Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus).
The surgical construction of an opening between the colon and the surface of the body.
Opening or penetration through the wall of the INTESTINES.
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 fold of peritoneum by which the COLON is attached to the posterior ABDOMINAL WALL.
Pathological processes in the COLON region of the large intestine (INTESTINE, LARGE).
Endoscopic examination, therapy or surgery of the luminal surface of the colon.
A chronic transmural inflammation that may involve any part of the DIGESTIVE TRACT from MOUTH to ANUS, mostly found in the ILEUM, the CECUM, and the COLON. In Crohn disease, the inflammation, extending through the intestinal wall from the MUCOSA to the serosa, is characteristically asymmetric and segmental. Epithelioid GRANULOMAS may be seen in some patients.
The distal segment of the LARGE INTESTINE, between the SIGMOID COLON and the ANAL CANAL.
A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function.
Inflammation of the COLON that is predominantly confined to the MUCOSA. Its major symptoms include DIARRHEA, rectal BLEEDING, the passage of MUCUS, and ABDOMINAL PAIN.
Infections with bacteria of the genus ACTINOMYCES.
A subspecialty of internal medicine concerned with the study of the physiology and diseases of the digestive system and related structures (esophagus, liver, gallbladder, and pancreas).
Methods and procedures for the diagnosis of diseases or dysfunction of the digestive system or its organs or demonstration of their physiological processes.
Diseases in any segment of the GASTROINTESTINAL TRACT from ESOPHAGUS to RECTUM.
A form of ACTINOMYCOSIS characterized by slow-growing inflammatory lesions of the lymph nodes that drain the mouth (lumpy jaw), reddening of the overlying skin, and intraperitoneal abscesses.
A broad range of biologically active compounds which occur naturally in plants having important medicinal and nutritional properties.
Inflammation of a DIVERTICULUM or diverticula.
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.
The insertion of drugs into the rectum, usually for confused or incompetent patients, like children, infants, and the very old or comatose.
Tumors or cancer of the COLON.
Discrete abnormal tissue masses that protrude into the lumen of the DIGESTIVE TRACT or the RESPIRATORY TRACT. Polyps can be spheroidal, hemispheroidal, or irregular mound-shaped structures attached to the MUCOUS MEMBRANE of the lumen wall either by a stalk, pedunculus, or by a broad base.
An abnormal passage in any part of the URINARY TRACT between itself or with other organs.
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).
An abnormal passage in the URINARY BLADDER or between the bladder and any surrounding organ.
A species of parasitic nematodes widely distributed throughout central Africa and also found in northern South America, southern Mexico, and Guatemala. Its intermediate host and vector is the blackfly or buffalo gnat.