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Cancer Medicine :: Treatment for Adenoid Cystic Carcinoma

Adenoid Cystic Carcinoma


This section outlines treatments that are the standard of care (the best proven treatments available) for this specific type of cancer. When making treatment plan decisions, patients are also encouraged to consider clinical trials as an option. A clinical trial is a research study to test a new treatment to evaluate whether it is safe, effective, and possibly better than standard treatment. Your doctor can help you review all treatment options. 

Treatment overview

In cancer care, different types of doctors often work together to create a patient’s overall treatment plan that combines different types of treatments. This is called a multidisciplinary team. The team may include medical and radiation oncologists; surgeons; otolaryngologists (ear, nose, and throat doctors); plastic (reconstruction) surgeons; maxillofacial prosthodontists (specialists who perform restorative surgery in the head and neck areas); dentists; physical therapists; speech pathologists; audiologists (hearing experts); psychiatrists; nurses; dietitians; and social workers. It is extremely important to create a comprehensive treatment plan before treatment begins, and people may need to be seen by several specialists before a treatment plan is fully developed.

Treatment overview

In cancer care, different types of doctors often work together to create a patient’s overall treatment plan that combines different types of treatments. This is called a multidisciplinary team. The team may include medical and radiation oncologists; surgeons; otolaryngologists (ear, nose, and throat doctors); plastic (reconstruction) surgeons; maxillofacial prosthodontists (specialists who perform restorative surgery in the head and neck areas); dentists; physical therapists; speech pathologists; audiologists (hearing experts); psychiatrists; nurses; dietitians; and social workers. It is extremely important to create a comprehensive treatment plan before treatment begins, and people may need to be seen by several specialists before a treatment plan is fully developed.

Although curing the cancer is the primary goal of treatment, preserving the function of the nearby nerves, organs, and tissues is also very important. When planning treatment, doctors consider how it might affect a person’s quality of life, such as how a person feels, looks, talks, eats, and breathes.

Descriptions of the most common treatment options for AdCC are listed below. Treatment options and recommendations depend on several factors, including the type and stage of cancer, possible side effects, and the patient’s preferences and overall health. Learn more about making treatment decisions.


Surgery is the removal of the tumor and surrounding tissue during an operation.

Surgical removal of the tumor is the best treatment for AdCC, provided it can be done safely and is likely to have a good outcome. A surgical oncologist is a doctor who specializes in treating cancer using surgery. During surgery, the surgeon will remove the tumor and an area of tissue surrounding it, called a margin. Surgery is considered the most successful if the margin removed during surgery is found to be “clean,” which means there is a minimum of 2 millimeters (mm) of cancer-free tissue surrounding the tumor. The extent of surgery will vary depending on the site of the tumor and the structures that are involved.

Because AdCC may frequently spread along nerves, the surgeon should examine and determine whether nerves are involved. Major nerves that are uninvolved should be identified and spared during surgery. Smaller branches of nerves should be analyzed to determine if the cancer has spread to the space surrounding the nerve. For a later stage tumor or one that significantly involves nerves, the surgeon should remove as much of the tumor as possible while sparing the organs and functions of the face.

Side effects from surgery vary depending upon the surgical site. A concern with all surgeries of the parotid gland is that the surgery may damage facial nerves, which can cause the muscles in the face to droop. Sometimes, a facial nerve graft or other reconstructive procedure (plastic surgery) may be used to restore the function of the facial muscles after surgery to remove the tumor. Patients should meet with different members of their health care team to help them make important decisions about treatment, to learn about programs to help them adjust to changes in their body and body image following treatment, and to understand what side effects to expect and how to cope with them.

Occasionally, it is not possible to remove AdCC using surgery. This type of tumor is called inoperable. In these cases, your doctor will recommend other treatment options.

External-beam radiation therapy

Radiation therapy is the use of high-energy x-rays or other particles to kill cancer cells. The most common type of radiation treatment is called external-beam radiation therapy, which is radiation given from a machine outside the body. A doctor who specializes in giving radiation therapy to treat cancer is called a radiation oncologist. A radiation therapy regimen (schedule) usually consists of a specific number of treatments given over a set period of time.

Radiation therapy is particularly effective for AdCC as an adjuvant therapy (therapy given after surgery) by helping to eliminate any microscopic cancer cells remaining in the body after surgery. Radiation therapy is not used pre-operatively (before surgery) for this disease, as many surgeons feel that the surgical wound heals better if radiation therapy is not given prior to surgery.

A specific method of external-beam radiation therapy, known as intensity modulated radiation therapy (IMRT), allows for more effective doses of radiation therapy to be delivered while reducing the damage to healthy cells and causing fewer side effects.

Since radiation therapy is targeted to a specific area, the side effects will depend on where the radiation therapy was given. Generally, during head and neck treatments, people may experience a sore mouth and/or throat that can cause pain and difficulty in swallowing. They may also have a skin reaction or burn that causes some pain. Before beginning radiation treatment for any head and neck cancer, patients should receive a thorough examination from an oncologic dentist (a dentist experienced in treating people with head and neck cancer).

Since radiation therapy can cause tooth decay, damaged teeth may need to be removed. Often, tooth decay can be prevented with proper treatment from a dentist before beginning treatment.

People should also receive an evaluation from a speech pathologist with experience treating people with head and neck cancer. The speech pathologist can teach exercises that will help maintain the strength and flexibility of the muscles used during speech and swallowing.

Long-term side effects of radiation therapy vary with the sites involved, but they may include permanent loss of saliva, causing dryness of the mouth and deterioration of the teeth. In some cases, a drug to stimulate the parotid saliva gland and increase or restore saliva levels may be given. Currently, amifostine (Ethyol), a drug to protect tissues during radiation therapy, is being studied. Scarring or fibrosis (hardening or thickening) of the skin and muscles may develop several months to years after radiation therapy and lead to problems with wound healing, neck stiffness, and trouble swallowing. Other long-term effects that can develop include accelerated narrowing of the carotid arteries (the arteries that supply the head and neck with blood) and hypothyroidism (underactive thyroid disease).

Neutron and proton radiation therapy

Neutron therapy is a different form of radiation therapy. Compared with conventional radiation therapy, neutrons can deliver 20 times to 100 times more energy along their path length, causing much greater damage to the cancer cells. Neutron radiation therapy has been tested on many different types of tumors, and salivary gland tumors and AdCC have shown the greatest benefit. In certain instances, neutron radiation therapy may be the treatment of choice for AdCC, particularly in areas of the body where it is difficult to perform surgery. However, neutron therapy carries more severe side effects than conventional radiation therapy, such as severe sore mouth and/or throat and difficulty swallowing; therefore, it is generally used more often with people with inoperable (surgery cannot be performed) or recurrent disease.

Medication to help increase saliva production and protect tissues may be given during this treatment. Neutrons cannot be used to treat large areas of the body for metastatic disease, but they can be used to treat isolated metastases that are causing problems, such as pain, blockage of part of the lung, or pressure on the spinal cord.

Proton therapy (also called proton beam therapy) is a type of external-beam radiation therapy that uses protons rather than x-rays. At high energy, protons can destroy cancer cells. The advantage of proton therapy is the ability to better control where the radiation is delivered, greatly reducing the damage to normal healthy tissues that surround the tumor. However, proton therapy has not been extensively researched for use in AdCC.

Neutron and proton therapy are not widely available. Talk with your doctor for information about the availability of these treatments.


Chemotherapy is the use of drugs to kill cancer cells, usually by stopping the cancer cells’ ability to grow and divide. Systemic chemotherapy is delivered through the bloodstream to reach cancer cells throughout the body. Chemotherapy is given by a medical oncologist, a doctor who specializes in treating cancer with medication. A chemotherapy regimen (schedule) usually consists of a specific number of cycles given over a set period of time.

Chemotherapy is generally not used for AdCC, as this type of cancer appears to be less responsive to chemotherapy than other types of cancer. Various combinations of chemotherapy have been tried without much success. The combination of chemotherapy and radiation therapy is considered experimental for AdCC.

Because AdCC is a rare disease and, in general, the current chemotherapy is of limited benefit, it is recommended that people with AdCC ask about clinical trials to treat this disease. It may also be beneficial to obtain a second opinion regarding treatment options. 

Learn more about chemotherapy and preparing for treatment. The medications used to treat cancer are continually being evaluated. Talking with your doctor is often the best way to learn about the medications prescribed for you, their purpose, and their potential side effects or interactions with other medications. Learn more about your prescriptions by using searchable drug databases.

Palliative/supportive care

Cancer and its treatment often cause side effects. In addition to treatment to slow, stop, or eliminate the cancer, an important part of cancer care is relieving a person’s symptoms and side effects. This approach is called palliative or supportive care, and it includes supporting the patient with his or her physical, emotional, and social needs.

Palliative care can help a person at any stage of illness. People often receive treatment for the cancer and treatment to ease side effects at the same time. In fact, patients who receive both often have less severe symptoms, better quality of life, and report they are more satisfied with treatment.

Before treatment begins, talk with your health care team about the possible side effects of your specific treatment plan and supportive care options. And during and after treatment, be sure to tell your doctor or another health care team member if you are experiencing a problem, so it is addressed as quickly as possible. Learn more about palliative care.

Recurrent AdCC

A remission is when cancer cannot be detected in the body and there are no symptoms. This may also be called “no evidence of disease” or NED. 

A remission can be temporary or permanent. This uncertainty leads to many survivors feeling worried or anxious that the cancer will come back. While many remissions are permanent, it’s important to talk with your doctor about the possibility of the cancer returning. Understanding the risk of recurrence and the treatment options may help you feel more prepared if the cancer does return. 

If the cancer does return after the original treatment, it is called recurrent cancer. It may come back in the same place (called a local recurrence), nearby (regional recurrence), or in another place (distant recurrence).

When this occurs, a cycle of testing will begin again to learn as much as possible about the recurrence. After testing is done, you and your doctor will talk about your treatment options. Often the treatment plan will include the therapies described above (such as surgery and radiation therapy), but they may be used in a different combination or given at a different pace. Your doctor may also suggest clinical trials that are studying new ways to treat this type of recurrent cancer.

People with recurrent cancer often experience emotions such as disbelief or fear. Patients are encouraged to talk with their health care team about these feelings and ask about support services to help them cope. 

Metastatic AdCC

If cancer has spread to another location in the body, it is called metastatic cancer. Patients with this diagnosis are encouraged to talk with doctors who are experienced in treating this stage of cancer, because there can be different opinions about the best treatment plan. Learn more about seeking a second opinion before starting treatment, so you are comfortable with the treatment plan chosen. 

Your health care team may recommend a treatment plan that includes a combination of surgery and radiation therapy. Supportive care will also be important to help relieve symptoms and side effects.

For many patients, a diagnosis of metastatic cancer can be very stressful and, at times, difficult to bear. Patients and their families are encouraged to talk about the way they are feeling with doctors, nurses, social workers, or other members of the health care team. It may also be helpful to talk with other patients, including through a support group.

If treatment fails

Recovery from cancer is not always possible. If treatment is not successful, the disease may be called advanced or terminal cancer.

This diagnosis is stressful, and this is difficult to discuss for many people. However, it is important to have open and honest conversations with your doctor and health care team to express your feelings, preferences, and concerns. The health care team is there to help, and many team members have special skills, experience, and knowledge to support patients and their families. Making sure a person is physically comfortable and free from pain is extremely important.

Palliative care given toward the end of a person’s life is called hospice care. You and your family are encouraged to think about where you would be most comfortable: at home, in the hospital, or in a hospice environment. Nursing care and special equipment can make staying at home a workable alternative for many families.

Coping with Side Effects

Fear of treatment side effects is common after a diagnosis of cancer, but it may help to know that preventing and controlling side effects is a major focus of your health care team. This is called palliative or supportive care, and it is an important part of the overall treatment plan, regardless of the stage of disease.

Common side effects from each treatment option for AdCC are described in detail within the Treatment section. Side effects depend on a variety of factors, including the cancer’s stage, the length and dosage of treatment(s), and your overall health.

Before treatment begins, talk with your doctor about possible side effects of each type of treatment you will be receiving. Ask which side effects are most likely to happen, when they are likely to occur, and what can be done to prevent or relieve them. And, ask about the level of caregiving you may need during treatment and recovery, as family members and friends often play an important role in the care of a person with AdCC. Learn more about caregiving.

In addition to physical side effects, there may be psychosocial (emotional and social) effects as well. Patients and their families are encouraged to share their feelings with a member of their health care team who can help with coping strategies. Learn more about the importance of addressing such needs, including concerns about managing the cost of your cancer care.

During and after treatment, be sure to tell the health care team about the side effects you experience, even if you feel they are not serious. Sometimes, side effects can last beyond the treatment period, called a long-term side effect. A side effect that occurs months or years after treatment is called a late effect. Treatment of both types of effects is an important part of survivorship care.

After Treatment

After treatment for AdCC ends, talk with your doctor about developing a follow-up care plan. This plan may include regular physical examinations and/or medical tests to monitor your recovery for the coming months and years.

People should have regular follow-up check-ups with their doctor to monitor the effects of treatment and to check for recurrences or distant metastases, which may occur even years after successful primary treatment. There is no known way to prevent recurrence of AdCC. A secondary cancer is rare after AdCC.

People treated with surgery may need cancer rehabilitation to regain physical function and flexibility. Treatments to the head and neck can affect swallowing, and patients may experience pain. These symptoms can be treated with rehabilitative therapy and, in most cases, get better gradually over time.

Follow-up care by an oncologic dentist may be needed after radiation therapy. Sometimes, care may be given by a prosthodontist (a dental specialist with additional training and certification in the restoration and replacement of broken teeth with crowns, bridges, and removable prosthetics [dentures]) if major surgery to the mouth or jaw has taken place during treatment.

Some people may experience depression following treatment, and this may require specialized therapy as well. Most cancer centers have support groups that encourage people to become more informed about these issues. Learn more about the next steps to take in survivorship, including making positive lifestyle changes.

People recovering from AdCC are encouraged to follow established guidelines for good health, such as maintaining a healthy weight, not smoking, eating a balanced diet, and having recommended cancer screening tests. Talk with your doctor to develop a plan that is best for your needs. Moderate physical activity can help rebuild your strength and energy level. Your doctor can help you create an appropriate exercise plan based upon your needs, physical abilities, and fitness level.

Current Research 

Research for AdCC is ongoing. The following advances may still be under investigation in clinical trials and may not be approved or available at this current time. Always discuss all diagnostic and treatment options with your doctor.

Anti-angiogenesis research. Anti-angiogenesis therapy is a type of targeted therapy (see below). It is focused on stopping angiogenesis, which is the process of making new blood vessels. Because a tumor needs the nutrients delivered by blood vessels to grow and spread, the goal of anti-angiogenesis therapies is to “starve” the tumor. Research is focused on how this type of therapy may benefit patients with AdCC.

Targeted therapies. Targeted therapy is a treatment that targets the cancer’s specific genes, proteins, or the tissue environment that contributes to cancer growth and survival. Currently, targeted therapies are being developed that may be useful in the treatment of AdCC. In particular, research continues to determine the molecular mechanism that regulates the spread of AdCC along the nerves. Learn more about targeted treatments.

Chemotherapy. Several clinical trials are examining the effects of newer drugs alone, or in combination with other drugs, in the control of metastatic or locally recurrent AdCC.

Supportive care. Clinical trials are underway to find better ways of reducing symptoms and side effects of current AdCC treatments in order to improve patients’ comfort and quality of life.

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