A spinal tumor is a growth that develops within your spinal canal or within the bones of your spine. A spinal cord tumor, also called an intradural tumor, is a spinal tumor that that begins within the spinal cord or the covering of the spinal cord (dura). A tumor that affects the bones of the spine (vertebrae) is called a vertebral tumor.
Spinal cord tumors may be classified as one of three different types depending on where they occur relative to the protective membranes of the spinal cord.
These are the main types of Intradural Tumors:
- Intramedullary tumors begin in the cells within the spinal cord itself, such as gliomas, astrocytomas or ependymomas.
- Extramedullary tumors grow in either the membrane surrounding the spinal cord or the nerve roots that reach out from the spinal cord. Although they don’t begin within the spinal cord itself, these types of tumors may affect spinal cord function by causing spinal cord compression and other problems. Examples of extramedullary tumors that can affect the spinal cord include meningiomas, neurofibromas, schwannomas and nerve sheath tumors.
Tumors from other parts of the body can spread (metastasize) to the vertebrae, the supporting network around the spinal cord or, in rare cases, the spinal cord itself.
Spinal tumors or growths of any kind can lead to pain, neurological problems and sometimes paralysis. A spinal tumor can be life-threatening and cause permanent disability.
Treatment for a spinal tumor may include surgery, radiation therapy, chemotherapy or other medications.
Spinal cord tumors can cause different signs and symptoms, especially as tumors grow. The tumors may affect your spinal cord or the nerve roots, blood vessels or bones of your spine. Signs and symptoms may include:
- Pain at the site of the tumor due to tumor growth
- Back pain, often radiating to other parts of your body
- Feeling less sensitive to pain, heat and cold
- Loss of bowel or bladder function
- Difficulty walking, sometimes leading to falls
- Back pain that’s worse at night
- Loss of sensation or muscle weakness, especially in your arms or legs
- Muscle weakness , which may be mild or severe, in different parts of your body
Back pain is a common early symptom of spinal tumors. Pain may also spread beyond your back to your hips, legs, feet or arms and may worsen over time — even with treatment.
Spinal tumors progress at different rates depending on the type of tumor.
Causes of Spinal Tumor
It’s not clear why most spinal tumors develop. Experts suspect that defective genes play a role. But it’s usually not known whether such genetic defects are inherited or simply develop over time. They might be caused by something in the environment, such as exposure to certain chemicals. In some cases, however, spinal cord tumors are linked to known inherited syndromes, such as neurofibromatosis 2 and von Hippel-Lindau disease.
Diagnosis of Spinal Tumor
Spinal tumors sometimes might be overlooked because they’re not common and their symptoms resemble those of more common conditions. For that reason, it’s especially important that your doctor know your complete medical history and perform both general physical and neurological exams.
If your doctor suspects a spinal tumor, these tests can help confirm the diagnosis and pinpoint the tumor’s location:
- Spinal magnetic resonance imaging (MRI). MRI uses a powerful magnetic field and radio waves to produce accurate images of your spine, spinal cord and nerves. MRI is usually the preferred test to diagnose tumors of the spinal cord and surrounding tissues. A contrast agent that helps highlight certain tissues and structures may be injected into a vein in your hand or forearm during the test.
- Computerized tomography (CT). This test uses a narrow beam of radiation to produce detailed images of your spine. Sometimes it’s combined with an injected contrast dye to make abnormal changes in the spinal canal or spinal cord easier to see. A CT scan is only rarely used to help diagnose spinal tumors.
- Biopsy. The only way to determine the exact type of a spinal tumor is to examine a small tissue sample (biopsy) under a microscope. The biopsy results will help determine treatment options.
Treatment of Spinal Tumor
Ideally, the goal of spinal tumor treatment is to eliminate the tumor completely, but this goal may be complicated by the risk of permanent damage to the spinal cord and surrounding nerves. Doctors at Shreya Hospital also take into account your age and overall health. The type of tumor and whether it arises from the structures of the spine or spinal canal or has spread to your spine from elsewhere in your body also must be considered in determining a treatment plan.
Treatment options for most spinal tumors include:
- Monitoring. Some spinal tumors may be discovered before they cause symptoms — often when you’re being evaluated for another condition. If small tumors aren’t growing or pressing on surrounding tissues, watching them carefully may be all that’s needed.During observation, your doctor will likely recommend periodic CT or MRI scans at an appropriate interval to monitor the tumor.
- Surgery.This is often the treatment of choice for tumors that can be removed with an acceptable risk of spinal cord or nerve injury damage.Newer techniques and instruments allow neurosurgeons to reach tumors that were once considered inaccessible. The high-powered microscopes used in microsurgery make it easier to distinguish tumor from healthy tissue.
Doctors also can monitor the function of the spinal cord and other important nerves during surgery, thus minimizing the chance of injuring them. In some instances, very high-frequency sound waves might be used during surgery to break up tumors and remove the fragments.
But even with the latest technological advances in surgery, not all tumors can be totally removed. When the tumor can’t be removed completely, surgery may be followed by radiation therapy or chemotherapy or both.
Recovery from spinal surgery may take weeks or longer, depending on the procedure.