Sigmoid Neoplasms
Tumors or cancer of the SIGMOID COLON.
Sigmoid Diseases
Pathological processes in the SIGMOID COLON region of the large intestine (INTESTINE, LARGE).
Intestinal Volvulus
A twisting in the intestine (INTESTINES) that can cause INTESTINAL OBSTRUCTION.
Diverticulitis, Colonic
Diverticulum, Colon
A pouch or sac opening from the COLON.
Cranial Sinuses
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).
Colostomy
The surgical construction of an opening between the colon and the surface of the body.
Pancreatic Neoplasms
Tumors or cancer of the PANCREAS. Depending on the types of ISLET CELLS present in the tumors, various hormones can be secreted: GLUCAGON from PANCREATIC ALPHA CELLS; INSULIN from PANCREATIC BETA CELLS; and SOMATOSTATIN from the SOMATOSTATIN-SECRETING CELLS. Most are malignant except the insulin-producing tumors (INSULINOMA).
Intestinal Obstruction
Mesocolon
The fold of peritoneum by which the COLON is attached to the posterior ABDOMINAL WALL.
Neoplasms
Colonoscopy
Endoscopic examination, therapy or surgery of the luminal surface of the colon.
Colonic Diseases
Pathological processes in the COLON region of the large intestine (INTESTINE, LARGE).
Neoplasms, Cystic, Mucinous, and Serous
Neoplasms, Multiple Primary
Two or more abnormal growths of tissue occurring simultaneously and presumed to be of separate origin. The neoplasms may be histologically the same or different, and may be found in the same or different sites.
Rectum
The distal segment of the LARGE INTESTINE, between the SIGMOID COLON and the ANAL CANAL.
Colon
Colonic Neoplasms
Tumors or cancer of the COLON.
Intestinal Fistula
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).