Spinal tumors are abnormal growth (mass) of cells that develop in and along the spinal cord and spinal column. Spinal tumors can develop at different sites, which include:
Bones of spinal vertebrae, including the bone marrow
Cartilage and joints in the vertebrae
Spinal discs present between the vertebrae
Blood vessels in the spine
Three layers of membranous casing of the spinal cord namely Dura mater, Pia mater, and Arachnoid mater
These tumors can be benign (non-cancerous) or malignant (cancerous) and may vary in size. A cancerous tumor is characterized when the abnormal cells divide continuously and uncontrollably with the potential of spreading via the blood or lymphatic system. A small-sized tumor might not exhibit symptoms; however, if the tumor continues to grow, it can induce adverse health effects and cause damage to different tissues in the spinal column. Spinal tumors or growths can induce pain, neurological problems, and even paralysis. A spinal tumor can be life-threatening and may cause permanent disabilities.
Types of spinal tumor –
In general, there are two types of spinal tumors classified based on their occurrence:
Primary Tumors - Primary tumors generally originate in the spine by growing in the bones, discs, nerves, or other elements. They are rare and primarily non-cancerous.
Secondary Tumors – These are the most prevalent types of tumors that spread from another area of the body to the spine. Termed metastatic or secondary spinal tumor, nearly 90% of spinal tumors fall in this category.
Based on the location, spinal tumors can be categorized as:
Intramedullary – Inside the spinal cord.
Intradural-extramedullary - In the tissues (meninges) covering the spinal cord.
Extradural - Between the meninges and bones of the spine.
Vertebral tumors - In the bony vertebrae of the spine.
The cause of a spinal tumor depends on its type:
Primary spinal tumor - The cause of most primary spinal tumors is still unknown; however, scientists suspect that genetic defects or environmental factors like exposure to cancer-causing chemicals or substances can cause primary spine cancer.
Secondary spinal tumor - Metastases most commonly develop when cancer cells outbreaks from the primary tumor and enter the bloodstream. Lung, prostate, connective tissue, breast cancers, and lymphoma are the most common cancers that tend to spread to the spine.
However, in some case studies, spinal cord tumors were found to be linked to known inherited syndromes, such as neurofibromatosis-2 and von Hippel-Lindau disease.
The symptoms of spinal tumors depend on the location, size, and type of the tumor. Back pain is the most common and primitive symptom of spinal tumors that worsens over time, even with treatment. Some spinal tumors cause no symptoms, while others trigger several symptomatic conditions, which include:
Back pain, often radiating to other parts of your body and worsen at night.
Pain at the site of the growth
Feeling less sensitive to pain, heat, and cold
Loss of bowel or bladder function
Difficulty walking or inability to walk or stand
Muscle weakness in different parts of the body (mild or severe)
Numbness, tingling, or loss of sensation.
Stiff back or neck
Scoliosis or other spinal deformities; resulting from a large and destructive tumor.
Paralysis may occur in varying degrees and in different body parts, depending on which nerves the tumor is compressing.
Diagnosis and Detection Tests
Getting an accurate diagnosis of a spinal tumor is crucial for the effective formulation of the treatment plan. This process typically involves:
Analysis of the patient's history regarding current symptoms, pre-existing conditions, past illnesses, injuries, medications, diet and lifestyle, and genetics.
Physical examination of the back, neck, and the suspected area for detection of any lesion, bump, instability, or other abnormalities.
Blood tests may also form part of the diagnostic process to help screen for spinal cancer.
Further clinical investigations involving medical imaging processes like Computed tomography (CT) scan, Magnetic resonance imaging (MRI) scan, Positron emission tomography (PET) scan, and Bone scan.
Biopsy for confirmation and comprehensive examination of the tumor.
Management and Treatment
Treatment of spinal tumors is highly individualized and depends on the tumor's location, size, type, and aggressiveness. Certain benign spinal tumors and cysts may not need treatment if they don't cause symptoms. However, regular MRI monitoring is necessary to scrutinize any unfavorable developments. The primary goals of spinal tumor treatment focus on the following:
Relieving the pain.
Maintaining or improving the function of the spine and spinal nerves, and
Improving the quality and length of life.
The treatment options may include a single or combination of therapies like:
Radiation therapy, including targeted proton therapy
Full or partial surgical removal of the tumor
Medications including steroids to combat swelling and back pain
When to see a doctor
Early diagnosis and treatment are crucial in the case of spinal tumors. Seek immediate medical attention if one experiences:
Progressive muscle weakness or numbness in legs or arms
Changes in bowel or bladder function
have a history of cancer
develop new back pain
Back pain that is:
persistent and progressive
not activity related
gets worse at night
accompanied by nausea, vomiting, or dizziness
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