Abnormal Connection. An abnormal connection between to organs or vessels. Example: entero-cutaneous fistula- an connection between the bowel and the skin. These are typically caused by diseases of the bowel. Example: arterio-venous fistula- a connection between an artery and a vein. These are created surgically to provide dialysis.
Connection between a. It is a connection between artery and vein.
An infection. In the perianal region, usually derived from the anal glands inside the rectum. A fistula is an abnormal communication between two organs, in this case the rectum and the skin outside the anus. Both require evaluation and often surgery to permanently resolve and prevent recurrences or complications. Read more...