Abscess - A localized collection of pus in a part of the body.

Anal Canal - The final portion of the digestive tract, ending in the anal opening.

Anoscope - A small viewing scope used to examine the anal canal and lower rectum.

Endoscopy - A procedure in which the inside of the body is viewed through an instrument called an endoscope.

Fecal Incontinence - The loss of voluntary control over the anal sphincters permitting involuntary passage of feces and gas.

Fibrinogen - A protein found in blood plasma that is essential in the clotting process.

Fistula - An abnormal tunnel or tract that connects one surface in the body to another.

Fistulotomy - A procedure in which the surgeon makes an incision in the fistula tract, opening it up and merging it with the anal canal.

Perineum - The area of tissue between the vagina and the rectum.

Rectum - The lowest 6-8 inches of the large intestine, ending in the anal opening.

Rectovaginal Septum - A layer of tissue that separates the vagina and the lower part of the rectum.

Seton - A piece of suture material that is threaded through the anal fistula and may be gradually tightened to open the fistula tract (cutting seton).

Thrombin - A protein found in blood that facilitates clotting.

Transabdominal - Across or through the wall of the abdomen.