Oropharyngeal Cancer Treatment: What to Expect Over Time

Oropharyngeal cancer can be treated along several different tracks. The track recommended for each person depends on the stage of the cancer, its HPV (p16) status, the person's overall health, and the person's own priorities.

About these pages

This page covers the steps that every treatment track shares for oropharyngeal cancer, which is cancer of the tonsil, base of the tongue, soft palate, or back wall of the throat (see Oropharyngeal Cancer (OPSCC) and HPV). It explains how a track is chosen and links to a separate timeline page for each of six tracks. Every timeline uses the same time scale, starting at the biopsy that confirms the cancer, so the tracks can be compared side by side.

The times shown are typical ranges. Every person is different, and a care team may do things in a different order or on a different schedule. These pages are a map rather than a rulebook.

HPV and p16

Many throat cancers today are caused by a common virus called HPV (human papillomavirus). A lab test on the biopsy called p16, sometimes with an additional HPV test, shows whether a cancer is HPV-positive or HPV-negative. This one result shapes much of what follows: how the cancer is staged, which treatments are offered, and the outlook.

• HPV-positive (p16-positive) throat cancers usually respond very well to treatment. In large studies, about 8 out of 10 people were alive 5 years later. The cancer itself is not contagious, and having it does not mean anyone did anything wrong.

• HPV-negative throat cancers are more often linked to tobacco and alcohol and tend to be harder to treat, with roughly 40 to 55 percent of people alive 5 years later in the same studies.

This is one reason two people with throat cancer may be offered quite different plans.

Step 1: Getting the diagnosis (week 0)

A cancer diagnosis requires a biopsy, a small sample of tissue examined under a microscope (see understanding pathology results). The timelines count from this biopsy as week 0. The method depends on where the problem is:

• Fine needle aspiration (FNA): a thin needle samples a lump in the neck, often guided by ultrasound. It is quick, done in the office, and usually the first test when a neck lump is the main finding. It feels much like a blood draw.

• In-office biopsy through the mouth: using a small camera and instruments, the surgeon takes a sample during a clinic visit (an incisional biopsy). This is often the fastest route to an answer, sometimes the same day as the first visit, and may leave a sore throat for a day or two.

• Operating-room biopsy (examination under anesthesia): if the tumor cannot be reached or seen in the office, the biopsy is done under general anesthesia, sometimes with removal of a tonsil or sampling of the base of the tongue to find a hidden primary tumor. This is day surgery, often followed by a sore throat for several days.

When scans are needed to look for a hidden tumor, they are often done before an operating-room biopsy, because a fresh biopsy can cause inflammation that confuses a PET scan.

Step 2: Scans and staging (weeks 0 to 3)

Once cancer is confirmed or strongly suspected, the care team stages it: measuring the size of the tumor and finding out whether it has spread. Common tests include:

• CT scan and/or MRI scan of the head and neck to map the tumor and lymph nodes. CT shows bone best; MRI shows soft tissue, nerves and the tongue best. Some people have both.

• PET-CT scan: a whole-body scan that highlights active cancer, used especially for more advanced cancers, to check for spread elsewhere in the body, or to look for a hidden primary tumor. A PET-CT visit takes a few hours in all.

• Chest imaging, often as part of the PET-CT, to check the lungs.

• The p16 (HPV) result on the biopsy, which usually returns within a week or two and completes the staging.

Scans are painless but involve lying flat and still, sometimes with an IV. Care teams can often make arrangements for claustrophobia or trouble lying flat when they know ahead of time.

Step 3: Meeting the team and getting ready (weeks 1 to 3)

Throat cancer is treated by a team. Before treatment begins, most people meet several specialists and complete baseline tests that protect long-term health:

• Three treating doctors: a head and neck surgeon, a radiation oncologist and a medical oncologist, who deliver the main treatments.

• Dental evaluation: a dentist experienced in cancer care checks the teeth, often with a panoramic X-ray. Teeth in poor condition that sit in the radiation field are usually removed at least 2 weeks before radiation starts, because extractions after radiation carry a much higher risk of a serious jaw-healing problem called osteoradionecrosis. High-strength fluoride is often prescribed for life.

• Speech and swallowing evaluation: a speech-language pathologist measures swallowing before treatment (see swallow evaluations), sometimes with a modified barium swallow study or a small camera. This baseline guides exercises that protect swallowing.

• Nutrition: a dietitian plans ahead for the weeks when eating becomes hard, since keeping up weight and strength matters a great deal during treatment.

• Hearing test: when the chemotherapy drug cisplatin is planned, a baseline hearing test is done, because cisplatin can affect hearing.

• Support with tobacco, alcohol and more: stopping tobacco around the time of diagnosis is linked with better survival and better treatment results. Care teams also help with alcohol, emotional distress, fertility questions, and financial and social concerns (see cancer information resources).

• Tumor board: the whole team reviews the case together at a multidisciplinary tumor board and agrees on a recommendation.

This is usually the busiest stretch of appointments, and many people bring a caregiver and a notebook to each visit. The time from diagnosis to the first treatment is commonly about 3 to 6 weeks.

Step 4: Choosing a treatment track (weeks 2 to 4)

Several tracks can treat oropharyngeal cancer, and often more than one is reasonable for a given person. The two main roads are surgery first, or treatment based on radiation. For many early throat cancers, studies show similar survival either way; the difference is mostly in the types of side effects. The final choice is a shared decision between the person and the care team.

What the recommendation is based on

The tumor board's recommendation for a track weighs several factors together:

• Stage of the cancer: the size and location of the main tumor, how many lymph nodes are involved and how large they are, whether cancer has grown outside a lymph node or the nodes are stuck together (matted), and whether it has spread beyond the neck.

• HPV (p16) status: HPV-positive and HPV-negative cancers are staged differently and respond differently to treatment.

• Whether the tumor can be removed through the mouth: the tumor's size and location, and how well it can be reached, decide whether surgery through the mouth can remove it completely while keeping swallowing and speech.

• Overall health: other medical conditions, heart and lung fitness for surgery and anesthesia, nutrition, and how active a person is day to day. Kidney function, hearing and other health conditions decide whether a person can safely receive cisplatin.

• Tumor markers: for the immunotherapy track, whether the cancer carries a marker called PD-L1.

• Tobacco use, which affects both the outlook and healing.

• The person's own priorities: how each track's side effects, recovery time, time away from work and daily travel for radiation fit the person's life.

The building blocks of treatment

• Surgery: transoral robotic surgery (TORS) removes the tumor through the mouth using a robotic system (see throat cancer treatments), usually together with removal of lymph nodes in the neck, called a neck dissection. It is best suited to smaller tumors on one side.

• Radiation therapy: high-energy beams aimed precisely at the tumor and lymph nodes, usually 5 days a week for about 7 weeks (see radiation therapy). A typical full dose is 70 Gray (Gy).

• Chemotherapy with radiation (chemoradiation): adding chemotherapy, usually cisplatin, makes radiation work better for more advanced cancers (see chemotherapy and immunotherapy). In large studies, replacing cisplatin with the gentler drug cetuximab led to worse results, so cisplatin remains the standard for those who can take it.

• Immunotherapy: the drug pembrolizumab helps the immune system attack the cancer (see immunotherapy for head and neck cancers). For some advanced cancers it is given before surgery and continued during and after radiation.

After surgery: is more treatment needed?

When surgery comes first, a pathologist examines everything that was removed. Findings such as cancer at the cut edge, several involved lymph nodes, or cancer growing outside a lymph node may lead to radiation or chemoradiation afterward to lower the chance of the cancer returning. For HPV-positive cancer, studies have shown that many people can safely receive a lower radiation dose after surgery. When radiation is needed after surgery, it ideally starts within about 6 weeks of the operation.

The six treatment tracks

The chart shows which tracks are usually considered in each situation. Each track has its own timeline page:

1. Surgery alone: transoral robotic surgery and neck dissection, with no added treatment when the removed tissue shows no features that call for more.

2. Surgery followed by radiation: radiation starting within about 6 weeks of surgery when the removed tissue shows features that raise the chance of the cancer returning.

3. Surgery followed by chemoradiation: radiation with cisplatin after surgery when the removed tissue shows higher-risk features, such as cancer at the cut edge or growing outside a lymph node.

4. Radiation alone: about 7 weeks of radiation, an option for many small, early cancers.

5. Chemoradiation: radiation with cisplatin, the usual track for larger or more advanced cancers.

6. Immunotherapy, surgery and radiation: pembrolizumab before surgery and during and after radiation, a newer option for some advanced cancers that can be removed and carry the PD-L1 marker, most often HPV-negative.

The branches in words

HPV-positive (p16-positive) cancer

• Early (small tumor, no or few lymph nodes): surgery (track 1) or radiation alone (track 4) are both reasonable. If surgery removes everything cleanly with no worrisome features, no further treatment may be needed; otherwise surgery leads to track 2 or 3.

• Intermediate (larger tumor, or larger or more lymph nodes): chemoradiation (track 5), or surgery followed by added treatment based on what the removed tissue shows (tracks 2 and 3). When lymph nodes are matted together or cancer has clearly grown outside a node, chemoradiation is usually favored over surgery.

• Most advanced (very large tumor or extensive lymph nodes): chemoradiation (track 5) is usually favored.

HPV-negative cancer

• Early: surgery (often favored; tracks 1 to 3) or radiation (track 4), with chemoradiation (track 5) for some.

• Locally advanced: chemoradiation (track 5) is the main option, with surgery plus added treatment (tracks 2 and 3) as an alternative. For some cancers that can be removed and carry the PD-L1 marker, immunotherapy is added (track 6).

Reading the timelines

Each track page has a timeline with rows for diagnosis and planning, treatment, side effects and healing, quality of life, check-ups and scans, and long-term care. Teal words in each timeline are links to related pages on this site.

The quality-of-life row shows average scores that patients reported in published studies, for overall quality of life, swallowing, speech and mood. Scores run from 0 to 100 (20 to 100 for swallowing), higher is better, and a change of about 10 points is generally noticeable. These averages describe groups of people, not what any one person will feel. The questionnaires behind the scores are described on the quality-of-life questionnaires page.

Recovery and the first months (1 to 12 months after treatment)

• Energy and eating improve steadily, with major gains for most people by 3 to 6 months and continued improvement up to a year.

• A follow-up PET-CT scan about 12 weeks after radiation or chemoradiation checks whether treatment worked. A clear scan at 3 months is very reassuring. Scans earlier than 12 weeks can give false alarms from healing inflammation.

• Swallowing therapy and nutrition support often continue during this time.

• Return to work and usual routines varies. Many people return within a couple of months after surgery alone; recovery after chemoradiation is often longer, around 5 months on average.

Living well after treatment

After treatment, the care team watches for and helps manage these long-term effects:

• Thyroid function: radiation to the neck can slowly lower thyroid function (hypothyroidism) in a large share of people, sometimes years later. A TSH blood test every 6 to 12 months for the first 3 years after treatment catches it, and treatment is a daily pill.

• Dental and jaw health: after radiation, lifelong fluoride and dental visits at least every 6 months protect the teeth. Dentists need to know about past radiation before any extraction, because of the risk of osteoradionecrosis.

• Swallowing over the long term: some survivors develop swallowing trouble that appears or worsens years later (see swallowing problems). Ongoing exercises and periodic swallow checks help, and new swallowing trouble is checked promptly.

• Dry mouth and taste changes: both often improve partly over 1 to 2 years, though some changes can last.

• Lymphedema (swelling of the face or neck): common and treatable. Specialized therapy, including manual lymph drainage, exercises and skin care, helps most people who have it, and earlier treatment works better.

• Neck blood vessels: years after neck radiation, the carotid arteries can narrow, which raises the risk of stroke. They may be checked over time, sometimes with ultrasound, alongside care for blood pressure, cholesterol and smoking.

• Hearing: hearing changes after cisplatin can persist, and hearing aids help when needed (see hearing loss treatments).

• Emotional health: anxiety and depression are common and treatable, and emotional support is a standard part of care after cancer.

• Tobacco and alcohol: staying tobacco-free and limiting alcohol lowers the risk of the cancer returning and of a new cancer, and improves overall health and survival.

• Second cancers: survivors have a higher-than-average chance of a new cancer later, especially in the head and neck, lungs or esophagus. This risk is lower after HPV-positive cancer.

Follow-up schedule

Regular check-ups find problems early. The follow-up clock starts at the end of treatment, so the first year runs from the end of treatment until 1 year later. A common schedule, based on national cancer guidelines:

Each visit includes an exam of the mouth, throat and neck, often with a small camera (fiberoptic laryngoscopy). After the first scan at about 3 months, imaging is usually done only for a symptom or a concern found on exam, so new or changing symptoms are one of the most reliable ways a problem is caught. Thyroid blood tests, and sometimes ultrasound of the neck arteries, are added over time. A newer blood test for HPV cancer DNA (HPV liquid biopsy) is being studied for follow-up and is not yet standard everywhere.

Questions people often ask the care team

• Is my cancer HPV-positive or HPV-negative, and what stage is it?

• Which treatment tracks fit my situation, and what are the side-effect trade-offs of each?

• Am I likely to need more than one type of treatment?

• What can be done now to protect my swallowing, teeth, nutrition and hearing?

• Whom do I call, and which symptoms need a call right away?

• What will my follow-up schedule look like?