Disease Entity. 1  Consist of refractive, hyaline-like calcified nodules located within the optic nerve head. 2  Prevalence 0.4-3.7%. 3  Males = Females.  Whites 1  > Blacks. >85% bilateral, but asymmetric.  Familial â Autosomal dominant inheritance.
Severe bleeding from the colon may require surgery to remove the affected portion of the colon. Bowel obstruction. A blocked colon is an emergency that may require total or partial colectomy, depending on the situation. Colon cancer. Early-stage cancers may require only a small section of the colon to be removed during colectomy. Cancers at a later stage may require more of the colon to be removed. Crohn's disease. If medications aren't helping you, removing the affected part of your colon may offer temporary relief from signs and symptoms.
The colon, also called the large intestine, removes water, some nutrients, and electrolytes from partially digested food. It is in the colon that food waste is changed from liquid to solid form and transported to the rectum. At bottom of the ascending colon is the colic valve, also referred to as the ileocecal valve. This valve separates the small intestine from the cecum and prevents material from flowing back into the small intestine. At the top of the ascending colon, the colon abruptly bends to the left, forming the right colic flexure (also called the hepatic flexure). The transverse colon begins after this flexure. Thirty percent of all tumors that develop in the colon or rectum (colorectal tumors) are located in the ascending colon.