FAP is caused by a problem in a certain gene. Polyps start growing mainly during the teenage years. Nearly all people with FAP will have polyps by age 35, and
cancer found before age 40.
Your chances for FAP are highest if you have other people in your family with the same disease. But, FAP can also happen without anyone in your family having it. This is caused by new changes in the gene.
FAP is treated with surgery. Since FAP causes so many polyps, they can’t be removed one by one. The goal of surgery is to remove the part of the colon that contains them. The type depends on how much of the colon has polyps.
The 3 main surgical treatments are:
with ileorectal anastomosis (IRA)
—The colon is taken out. The last part of the small intestine is connected to the rectum. Bowel use will stay.
Restorative proctocolectomy—The colon and rectum are taken out. A pouch is made with the last part of the small intestine. The pouch mimics how the rectum works. It’s then attached to the anal canal. Bowel use will stay.
Total proctocolectomy with a
—The colon is taken out. This results in the need for a colostomy. A path for solid waste to pass from the body is made through the belly wall. A special bag is needed to collect the waste.
Endoscopy is used to find polyps in the small intestine. This is done through small cuts in the belly. Tubes are placed in the cuts. Tools and lights are inserted into the tubes. Polyps are taken out through the tubes.
Nonsteroidal anti-inflammatory drugs (NSAIDs) shrink the polyps. They can also keep new ones from forming.