About Anal Cancer


About Anal Cancer

At Penn Medicine's Abramson Cancer Center, patients with anal cancer receive their care from a multidisciplinary team of nationally recognized experts in the diagnosis, treatment and research of gastrointestinal cancer.

The anus is at the end of the digestive tract below the rectum. The anal canal is a three- to four-centimeter long structure between the anal sphincter, a muscle that controls bowel continence, and the anal margin, the area of skin just outside of the digestive tract. The anus is the opening of the rectum to the outside of the body.

There are two types of anal cancer:

  • Anal margin: Visible on the skin outside of the anus
  • Anal canal: Cannot be seen on the outside of the anus

Anal cancer is not very common and accounts for only 1 to 2 percent of all gastrointestinal cancers.

Penn Medicine's multidisciplinary approach to cancer diagnosis and treatment provides better outcomes and gives patients access to the most advanced treatment, surgical techniques and clinical trials. This multidisciplinary approach has a dual goal of anal conservation and cure of disease.

Because navigating a cancer diagnosis and treatment options can be difficult, patients who wish to connect with a cancer specialist at Penn Medicine can speak with a cancer nurse, who can help them make an appointment with the right physician.

To connect with a cancer nurse at Penn Medicine, patients should call 800-789-PENN (7366).