What is mucosal melanoma?

Mucosal melanoma is a type of melanoma. This form of cancer starts in melanocytes, which are cells that make melanin, the pigment that gives color to your skin, hair, and eyes.

Most melanomas grow on the skin, but mucosal melanoma develops in mucous membranes, the moist tissues that line the inside of certain parts of the body. These tissues are found in areas like the nose and sinuses, mouth, digestive tract, and organs involved in urination and reproduction. Because mucosal melanoma grows in places that are hard to see, it can be more difficult to detect and is often diagnosed at a later stage.

At Penn Medicine, our melanoma team has extensive experience caring for people with mucosal melanoma. Our specialists work together across different fields to diagnose and treat this rare cancer. We use advanced testing and personalized treatment plans to provide coordinated care you can count on.

Types of mucosal melanoma

Doctors group mucosal melanoma by where it starts in the body:

  • Head and neck mucosal melanoma: Starts in the nose, sinuses, mouth, or throat.
  • Gastrointestinal (GI) mucosal melanoma: Starts in the digestive tract, including the esophagus, stomach, intestines, rectum, and anal canal.
  • Genitourinary mucosal melanoma: Starts in the urinary and reproductive

Mucosal melanoma symptoms

Symptoms of mucosal melanoma can vary from person to person. Symptoms that can occur in any area of the body include unusual bleeding, a lump or mass, dark patches or discolored areas, or open sores that don’t heal. Other symptoms can depend on where the cancer starts in the body. They may be mild at first or mistaken for common health problems. These symptoms can have many causes, and having them does not always mean cancer. Talk with your doctor if you have symptoms that do not go away, get worse, or seem unusual for you.

Risk factors for mucosal melanoma

Unlike skin melanoma, mucosal melanoma isn’t linked to ultraviolet (UV) light from the sun. In many cases, doctors do not know what causes it. Researchers are still studying possible risk factors. These may include gene changes, chronic inflammatory disease, viral infections like human immunodeficiency virus (HIV), and exposure to harmful chemicals, including tobacco smoke.

Mucosal melanoma diagnosis

Diagnosis usually begins with a review of your medical history and a physical exam. Doctors may then use imaging and other tests to confirm the diagnosis and see if the cancer has spread.

How is mucosal melanoma staged?

Staging helps doctors understand how advanced the cancer is and helps guide treatment planning. It looks at the size and depth of the tumor, whether the cancer has spread to nearby lymph nodes, and whether the cancer has spread to other parts of the body.

Mucosal melanoma treatment

Treatment depends on the location of the tumor and whether the cancer has spread. Our team works closely with you to create a treatment plan based on your specific needs. When possible, surgery is used to remove as much of the tumor as possible, and many people receive more than one type of treatment.

Follow-up care for mucosal melanoma

After treatment, ongoing care is an important part of recovery and long-term health. Regular visits help your care team check for signs that the cancer may return or spread and manage any side effects. Follow-up care may include physical exams to check the area where the cancer started, imaging tests, and sometimes blood tests or other exams based on your treatment and overall health. Your care team will create a plan based on your diagnosis, treatment, and overall health.

Expert care for mucosal melanoma

Because mucosal melanoma is rare, it’s important to receive care from a team with experience treating this disease. The Tara Miller Melanoma Center, part of the Abramson Cancer Center, provides specialized care for people with mucosal melanoma. Our team offers:

  • Experienced melanoma experts: Our doctors specialize in melanoma care, including surgery, medical oncology (cancer care), and radiation oncology. Our team treats rare and complex cancers, including mucosal melanoma.
  • Advanced treatment options: Our specialists use a wide range of treatments, including surgery, immunotherapy, and radiation therapy. Through clinical trials, some people may have access to newer treatments that are not yet widely available.
  • Coordinated, team-based care: Clinicians from different areas of medicine work together to create and manage your treatment plan. This approach helps ensure you receive the right care and support throughout treatment.
National Cancer Institute Designated Comprehensive Cancer Center badge on top of shot of hospital

Rated “exceptional” by The National Cancer Institute

Penn Medicine’s Abramson Cancer Center is a world leader in cancer research, patient care, and education. Our status as a national leader in cancer care is reflected in our continuous designation as a Comprehensive Cancer Center by the National Cancer Institute (NCI) since 1973, one of 7 such centers in the United States. The ACC is also a member of the National Comprehensive Cancer Network, one of a select few cancer centers in the U.S., that are working to promote equitable access to high-quality, advanced cancer care.

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