Head & Neck Cancer Types and How It Spreads to Lymph Nodes
- teresaamadrigal
- May 1, 2025
- 4 min read
Updated: Jun 3, 2025
Head and neck cancer is often collectively referred to as head and neck squamous cell carcinoma (HNSCC) when talking specifically about the most common type (which starts in the squamous cells lining the mucosal surfaces of the head and neck, such as the mouth, throat, and voice box). They have similar risk factors (such as tobacco and alcohol use, and HPV infection).
Head and neck cancers can sound overwhelming, but understanding how they spread and what it means for your health is the first step in taking control. One of the most common places head and neck cancers spread is to the cervical lymph nodes in the neck region.
The broader term "head and neck cancer" also includes cancers of the:
Salivary glands
Nasopharynx
Sinuses
Lips
Thyroid (though thyroid cancer is often discussed separately)
What is Head & Neck Cancer?
Head and neck cancers include a group of cancers that start in the mouth (oral cavity), throat (pharynx), voice box (larynx), nose and sinuses, and salivary glands. These areas are essential for speaking, swallowing, and breathing. When the cells in these areas change abnormally and grow uncontrollably, it can lead to cancer. The most common type that often spreads to lymph nodes in the neck is squamous cell carcinoma.
Squamous Cell Carcinoma (SCC) This is the most common type of head and neck cancer and is most likely to spread to cervical lymph nodes. It starts in the thin, flat cells lining the inside of the mouth, throat, or voice box.
Adenocarcinoma A less common type that starts in the glandular cells of the salivary glands or sometimes in the sinuses or nasal cavity.
Mucoepidermoid Carcinoma A type that can develop in the salivary glands. It can range from slow-growing to more aggressive forms that spread to lymph nodes.
Adenoid Cystic Carcinoma A rare type that often starts in the salivary glands and can grow slowly but spread to lymph nodes or nerves.
Lymphomas Cancers of the immune cells that can sometimes arise in the head and neck region, particularly in the tonsils or base of the tongue.
Other Rare Types Includes sarcomas, melanoma of the mucosal surfaces, and esthesioneuroblastoma (which starts in the nasal cavity).
Where Does It Spread First?
Most head and neck cancers spread first to the cervical lymph nodes in the neck. These are small, bean-shaped structures that filter fluids and help fight infections. They are grouped in levels I through VI, depending on their location in the neck. As the disease progresses, cancer can spread to more distant lymph nodes or other organs.
How Does Head & Neck Cancer Spread to Lymph Nodes?
Step 1: You Notice Something Different
You might notice a lump or swelling in your neck, a sore throat that doesn’t heal, difficulty swallowing, a change in your voice, or a persistent earache. These symptoms might lead you to see a doctor.
Step 2: Tumor Forms in the Head or Neck Area
Cancer cells begin to grow in the tissues of the mouth, throat, voice box, or other head and neck areas.
Step 3: Cancer Cells Break Away
Some cancer cells separate from the main tumor and slip into nearby lymphatic vessels (these are tiny tubes that carry lymph fluid and immune cells)
Step 4: They Travel Through Lymphatic Vessels
These cancer cells travel through the lymphatic fluid toward the cervical lymph nodes in the neck.
Step 5: Settle in Cervical Lymph Nodes
Cancer cells settle in one or more cervical lymph nodes, where they may grow into small lumps that your doctor might detect during a physical exam or imaging.
Step 6: You or Your Doctor Notices Symptoms or Swelling
You might notice a lump in your neck that doesn’t go away, or your doctor may feel enlarged lymph nodes during an exam or see them on a CT scan.
Step 7: Doctor Confirms Diagnosis
Your doctor will order tests like a neck ultrasound, CT scan, MRI, or a fine-needle biopsy to see if the lymph nodes are cancerous.
Step 8: Treatment Planning
If cancer is confirmed, your doctor will discuss a treatment plan that may include surgery, radiation therapy, chemotherapy, or a combination, depending on the type of cancer and how many lymph nodes are affected.
Why Does This Matter?
Squamous cell carcinoma is the most common type of head and neck cancer to spread to cervical lymph nodes. While the spread to lymph nodes can mean a more advanced stage, it does not always mean a poor prognosis because many people respond well to surgery and other treatments.
Adenocarcinoma, mucoepidermoid carcinoma, and adenoid cystic carcinoma can also spread to cervical lymph nodes but may require different treatment approaches depending on their specific behavior.
Something To Think About:
If you notice any lumps in your neck, persistent throat pain, or changes in your voice, see your doctor right away. Head and neck cancers can spread to the cervical lymph nodes through the lymphatic system. Imaging tests, biopsy, and a treatment plan help determine the best way to treat it.
Sources:
American Cancer Society. (2023). Head and Neck Cancer.
Head and Neck Cancer.
National Cancer Institute. (2023). Head and Neck Cancers Treatment (PDQ®)–Patient Version.
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