By Dr. Laureano Giraldez-Rodriguez, MD, FACS
Completing treatment for head and neck cancer is a huge achievement, but I know that for many patients, the joy comes with a question that doesn’t go away: what if it comes back? Follow-up after head and neck cancer treatment is one of the areas where active surveillance can make the difference between catching a recurrence early, when it’s still treatable, or late, when options are more limited.
Why follow-up is essential
Head and neck cancers carry a risk of recurrence that varies depending on type, location, initial stage, and treatment received. Most recurrences occur within the first two to three years after treatment, though they can occur later.
Beyond local recurrence, these patients have an elevated risk of developing a second primary tumor in the head and neck region or in the upper aerodigestive tract, including the esophagus and lungs. This risk persists for life and underscores the importance of ongoing follow-up.
The follow-up protocol
Standard follow-up after head and neck cancer treatment includes regular visits with a complete clinical exam. During the first two years, visits are typically every one to three months. From year two to five, visits are every two to six months. After the fifth year, visits are annual.
At each visit, I perform a thorough examination of the oral cavity, pharynx, larynx, and neck, including palpation of lymph nodes and, when appropriate, flexible nasopharyngolaryngoscopy to visualize areas not accessible to direct examination.
Imaging studies are an essential part of the protocol. A baseline CT scan or MRI is recommended approximately three months after completing treatment, followed by periodic studies based on individual risk. PET-CT can be especially useful for distinguishing post-treatment changes from recurrent disease.
Warning signs you should know
As a patient, you’re the first line of defense. Knowing the warning signs allows you to seek evaluation quickly. You should contact your doctor if you notice a new mass or lump in the neck, persistent pain in the mouth, throat, or ear that doesn’t resolve, changes in your voice or new hoarseness, increasing difficulty swallowing, unexplained bleeding from the mouth or throat, unintentional weight loss, or numbness or weakness in any part of the face.
I want to emphasize that having one of these symptoms doesn’t mean the cancer has returned. Many of these symptoms can have benign causes, especially in the context of post-treatment changes. But it’s always worth getting evaluated.
Managing late effects of treatment
Follow-up isn’t just about looking for recurrence. Head and neck cancer treatments can have long-term effects that require ongoing management. Radiation therapy can cause tissue fibrosis, dry mouth, swallowing difficulty, hypothyroidism, and dental problems. Surgery can leave functional deficits that need continued rehabilitation. Chemotherapy can have long-term effects on hearing, kidneys, and the nervous system.
At every follow-up visit, I assess these effects and adjust the management plan based on the patient’s needs. The goal isn’t just to detect recurrence but to maintain the best possible quality of life.
Second primary tumors: the risk that doesn’t go away
Patients who have had head and neck cancer carry a three to seven percent per year risk of developing a second primary tumor. This is particularly important in patients with a history of smoking and alcohol use.
Smoking cessation and moderating alcohol intake are the most important preventive measures. If you smoke and have completed treatment for head and neck cancer, quitting smoking is probably the most impactful thing you can do for your long-term prognosis.
The emotional side
Anxiety related to possible recurrence, what we call fear of recurrence, is a universal experience among cancer survivors. Before every follow-up appointment, many patients experience significant anxiety. This is completely normal.
I recognize this anxiety at every visit and work to create a space where my patients feel safe expressing their concerns. Specialized psychological support can be extremely valuable in managing this aspect of follow-up.
Follow-up after cancer is a long-term relationship. I tell my patients that completing treatment isn’t the end of our journey together but the beginning of a new phase. I’m here to monitor, to detect, to treat if necessary, and to support you every step of the way. Vigilance is power, and together we’re going to maintain that vigilance.
