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.
1 The large intestine contains all of the colon, but the colon does not contain the cecum, appendix, rectum, or anal canal.  The colon is only a part (the biggest part) of what makes up the large intestine. The colon has 4 parts - ascending colon, transverse colon, descending colon, and sigmoid colon. The anal canal, rectum, cecum, and appendix are not part of the colon.