Large Bowel Obstruction
Large bowel obstruction occurs when there is a bowel obstruction distal to the ileocecal valve. Bowel obstructions have been documented as early as 1550 B.C. in the Papyrus. Etiology History…
Read MoreColonic Pseudo-obstruction
Colonic pseudo-obstruction (Ogilvie syndrome) occurs when there is acute dilation of the colon with no mechanical obstruction. It was first described in 1948 by the British surgeon William Heneage Ogilvie.…
Read MoreRight Colectomy, Laparoscopic
Right colectomy, or right hemicolectomy, is the surgical removal of the right, or ascending, colon with anastomosis of the remaining ends. It involves division of the ileocolic and right colic…
Read MoreHemorrhoids, external
External hemorrhoids occur distal to the dentate line. The treatment of hemorrhoids in the past has included suppositories, cautery, and excision. Walter Whitehead introduced a radical procedure in 1882 in…
Read MoreAnal Fissure
Anal fissures occur when there is a tear in the anal canal that usually extends from the dentate line to the anal verge. The most effective treatment for anal fissures,…
Read MoreColon Cancer
Colorectal cancer is the third most common cancer in men and women in the U.S. Colorectal cancer is further divided into colon cancer and rectal cancer. The former will be…
Read MoreFistula-in-Ano
Fistulas occur when there is an abnormal connection between two epithelialized surfaces that do not usually connect. Fistula-in-ano refers to a fistula between the skin and the anus. In 30…
Read MoreAnorectal Abscess
Anorectal (perirectal) abscesses are usually the result of an infection of the anal glands located at the dentate line. They commonly expand caudally to the anoderm (perianal abscess) or across…
Read MoreRectovaginal Fistula
Rectovaginal fistulas are an abnormal connection between the rectum and vagina. In patients with recurring or persistent rectovaginal fistulas, a Martius repair can be utilized to correct the abnormality. This…
Read MoreVentral Hernia
Ventral hernias are hernias that occur through the anterior abdominal wall. Etiology Physical exam Imaging Relevant Information Complications Scoring Systems/Classifications Differential Diagnoses
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