Spinal cancer or tumors can form anywhere along the spinal column, including the vertebrae, spinal cord, and tissue surrounding the spinal cord. Most spinal tumors develop from cancer that has spread from another area of the body.
Spinal tumors may be benign, meaning noncancerous, or malignant, meaning cancerous. They may be primary if they originate in the spine or secondary if they metastasize from another area of the body.
This article reviews spinal cancer and tumors, the types, symptoms, causes, and treatment.
Spinal cancer and tumors can start anywhere along or within the spinal column. The spinal column consists of the vertebrae, spinal cord, and surrounding tissue.
The spinal column is a bone structure that provides support and protects the spinal cord. The spinal cord is the long band of nerves that runs along a person’s back. It transmits signals from the brain to the rest of the body.
Spinal tumors can develop anywhere along the spinal cord or the bones of the spinal column. These are two different types of cancers.
Doctors often describe spinal cancer based on where it started to develop. Cancerous tumors that develop on the spine most often come from another cancer that developed somewhere else within the body.
Preexisting cancer spreads to the bones of the spinal column in an estimated 30–70% of cancer patients.
Spinal cancer symptoms can vary based on the location of the tumor.
Other possible symptoms include:
- trouble walking
- tingling, numbness, or weakness in both legs or arms
- sensory issues
- loss of bladder or bowel control
- difficulty balancing
Worsening symptoms can indicate that the tumor is affecting the nerves in the spine.
There are several different types of spinal cancer. Medical experts differentiate them based on a number of factors, which include:
- the type of tumor
- whether it is primary or secondary
A doctor will be able to provide a person with spinal cancer with information about the type of tumor.
Types of tumors
Several different types of cells and tissue make up the spinal column, resulting in several
- Chordoma: These are malignant tumors that form in the spine and skull. They often occur around the lower spine and tailbone.
- Astrocytoma: This type forms in the supporting cells inside the spinal cord and may be malignant or benign.
- Meningioma: These are typically benign tumors that form in the meninges, the tissue that covers the spinal cord and brain.
- Hemangioblastoma: This type forms from blood vessels connected to the central nervous system, which consists of the spinal cord and brain.
- Ependymoma: These tumors develop in the lining of the spinal fluid passageways in the spinal cord and brain.
- Glioblastoma: This is an aggressive, malignant tumor that forms from cells called astrocytes, which support nerve cells in the brain and spinal cord.
- Osteosarcoma: This is a type of bone cancer that may start in the spine but is more common in the shin or thigh bones.
- Spinal hemangioma: This type of tumor forms from the tissues of blood vessels inside the spinal column and is usually benign.
- Neurofibroma: This benign tumor grows on nerves found throughout the body, including the spinal column.
- Schwannoma: This is a typically benign tumor. It affects the cells surrounding the nerve fibers of the spinal cord, peripheral nervous system, and cranial nerves.
A spinal tumor can occur anywhere along the spinal column. The exact location can help a doctor classify the tumor. Locations may include:
- the cervical spine, around the neck
- the thoracic or upper- to mid-back area
- the lumbar or lower back area
- the sacrum or bottom of the spine
In addition to the approximate location along the spine, a doctor may describe where the tumor appears within the spine. Descriptions may include:
- Intramedullary tumor: This grows within the spinal cord and accounts for about 5% of all cases.
- Intradural-extramedullary tumor: This grows inside the thin covering of the spinal cord, known as the dura, and outside the actual spinal cord. This type of tumor accounts for about 40% of all cases.
- Extradural tumor: This is located outside the dura and accounts for about 55% of all cases.
Metastatic spinal cancer
The exact cause of primary spinal tumors is still unclear. However, scientists suspect that genetic conditions, such as neurofibromatosis 2 or autoimmune disorders, may affect their development. Exposure to carcinogens may also affect their development.
Secondary spinal tumors occur due to metastasized cancer from another part of the body. Lung and breast cancers are the
Risk factors for developing primary spinal tumors may include having one of the following conditions:
- Neurofibromatosis 2: This is a type of genetic disorder that can cause benign tumors. However, they more commonly develop in the ears and cause hearing loss.
- Von Hippel-Lindau disease: This multisystem disorder causes benign tumors in blood vessels. They may occur in the spine or brain.
For secondary tumors, a person with a number of different cancers, such as breast or lung,
A person who receives a cancer diagnosis should discuss their risk of developing a spinal tumor with their doctor.
Sometimes, a doctor may discover a spinal tumor during a routine evaluation. Or they may discover a tumor when a person seeks help for back pain associated with the tumor.
During an evaluation, the doctor will examine the person’s back and may do tests to help determine the person’s neurological functioning.
If the doctor suspects a person may have a spinal tumor, they
- Grade I: A slow-growing tumor with benign features, which is typically easy to treat with surgery.
- Grade II: A slow-growing tumor containing some abnormal cells that may spread to nearby tissue.
- Grade III: A malignant tumor that grows quickly and will likely spread to nearby cells and tissue.
- Grade IV: A malignant, fast-growing tumor that spreads quickly.
Doctors stage secondary tumors or those that metastasized from another area of the body based on the original cancer. For example, a secondary tumor found in the spine may be stage 4 breast cancer.
A doctor may recommend one or more treatment options for a person based on the tumor’s location and other factors that may affect the outcome.
The primary treatment
A medical professional may also prescribe or recommend therapies to help with symptoms associated with the tumor. This may include pain medications.
A person’s outlook for spinal cancer depends on whether it is primary or secondary, where it develops on the spine, their age, overall health, and response to treatment.
A doctor can typically remove lower grades of primary tumors with surgery. Higher grades may require a combination of surgery and other treatments to manage any cancerous cells.
Doctors cannot cure metastasized cancer, but treatment can help put it into remission, allowing a person to live a longer life.
The following table shows the average 5-year survival rates after diagnosis:
|Ages 20–44 years||Ages 45–54 years||Ages 55–64 years|
|Low-grade (diffuse) astrocytoma||73%||46%||26%|
Living with spinal cancer
A doctor will likely review treatment recommendations with someone diagnosed with spinal cancer. A person should discuss their concerns with a doctor and ask for advice on managing their pain.
People may find that lifestyle changes, such as improving their diet and regular exercise may help them to better manage their condition.
It is not always possible to prevent spinal cancer or tumors from forming.
Following treatment recommendations and aggressively treating primary cancer may help secondary tumors.
However, even following treatments, it is still possible for cancer to come back or spread.
Spinal cancer is a rare form of cancer. Most spinal tumors occur due to cancer developing in another part of the body and spreading to the spine.
Primary spinal tumors may be benign and start in the tissue of the spinal cord.
The overall survival rate for spinal cancer is high for most types that start in the spine. A person should talk with their doctor about their survival rate for secondary tumors, as that rate usually relates to the primary cancer’s outlook.