ASTROCYTOMA

Doctors categorize spinal cord Astrocytomas into four classes based on scientific studies in medicine:

Grade I

The surgical excision of certain benign tumors, including pilocytic astrocytoma, can cure them. Although they do not infiltrate other structures, if they get big enough, they can produce symptoms through a mass effect. Most cases of these low-grade astrocytomas appear in youngsters.

Grade II

These are slow-growing and infiltrating spine tumors. Doctors need to regularly monitor them since they can become more aggressive.

Grade III

Also known as Anaplastic Astrocytomas, these aggressive tumors get treated as cancer.

Grade IV

These high-grade astrocytomas are normally malignant and the most aggressive and quickly expanding kind. Higher grade (Grade III) astrocytomas also signify a fast-growing, malignant tumor, while lower grade (Grade I and II) astrocytomas often refer to benign, slow-growing tumors. These cancerous tumors frequently infect neighboring healthy tissue, escalating the harm. Tumors of lower grades can advance to a higher grade.

Additionally, the Location of the Tumors Helps to Categorize Them:

Brainstem gliomas are astrocytomas that develop in this area of the brain. These astrocytomas are situated around the base of the patient’s skull and above the back of the neck, an area where the brainstem aids in controlling vital bodily processes like breathing and heart rate. Although these tumors can classify as any grade, brainstem gliomas often affect children and young adults and are typically high grade. Pineal astrocytic tumors are tumors that develop in the region of the pineal gland in the brain. The pea-sized gland responsible for producing the hormone melatonin, which controls the sleep-wake cycle, is located in this area. There are many grades of pineal astrocytic tumors. A few astrocytomas also have oligodendrocytes, a different kind of glial cell. Mixed gliomas or oligoastrocytomas identify the names of these tumors.

What Causes an Astrocytoma?

We do not know the exact cause of most astrocytomas. Therapeutic irradiation can lead to the development of astrocytomas. Other environmental exposures, though suspected, do not cause astrocytoma. There is evidence of a hereditary component in some instances, according to several researchers.

Symptoms of Spinal Cord Astrocytoma

The following symptoms may appear, depending on the location of the Spinal Tumor

1. chronic back pain
2. Emaciation and other sensory modifications
3. Inability to control one’s bladder or bowels Muscle weakness or spasms on one or both sides of the body
4. imbalance issues and unstable gait (ataxia)

Doctors identify herniated discs or spinal stenosis as much more likely the source of these symptoms. However, variations can occur that only a skilled expert might spot.

Risk Factors of Spinal Cord Astrocytoma

An astrocyte, or support cell of the nervous system, grows disorderly as a result of a genetic mutation, which results in the development of an astrocytoma. Although a benign or low-grade astrocytoma grows slowly, the effect on the nearby tissues might nonetheless result in symptoms. If more mutations take place, the tumor cells learn how to infiltrate and invade the tissues around them, which results in a malignant transformation. The precise etiology of these alterations is unclear, as it is frequently the case with primary spinal neoplasms. The following identifies known risk factors:

Age

In general, astrocytomas of the spine appear more frequently in children and young people and appear less harmful at this age. Adults over the age of 35 usually develop aggressive tumors — developing into malignancies.

Radiation exposure

A major contributing element to the development of spinal astrocytomas is prior ionizing radiation exposure. Radiation therapy, nuclear pollution, and X-rays provide examples of ionizing radiation. There is no proof linking the development of astrocytomas in the spinal cord to electromagnetic radiation from power lines, microwaves, or mobile phones.

Genetic factors

There is not much proof that hereditary factors play a role in the development of spine astrocytomas.

Diagnosis of Spinal Cord Astrocytoma

Diagnosis begins with a thorough evaluation by a spine specialist. This includes a complete medical history and a neurological examination to identify even subtle defects. If done well, your medical history and physical condition will determine which parts of the spine become affected. MRI is the test of choice for confirming the diagnosis of astrocytoma and providing a clear anatomical picture of tumor location, size, and morphology. Once the tumor has been localized and an analysis has been conducted of the involvement of surrounding structures, the patient will likely get scheduled for a tissue biopsy, which can occur separately or in combination with tumor resection.

A surgical procedure called a biopsy enables the surgeon to take a tiny sample of the damaged tissue while the patient is asleep in the operating room. A neuropathologist will examine the tissue obtained during the biopsy under a microscope in the laboratory. An examination of the tumor will disclose if it is benign or malignant.  The tumor’s grade and cell of origin will also become determined by the biopsy. The prognosis and treatment strategies are determined by each of these variables.

Treatment of Spinal Cord Astrocytoma

Finally, the location, size, grade, age, general health status, and medical history all have a role in the course of treatment for spinal astrocytomas. If a low-grade astrocytoma doesn’t show any symptoms of development or spread, watchful waiting with or without radiation therapy is an option for treatment. The best safest surgical excision of the tumor without harming the spinal cord is the recommended course of therapy for big or aggressive tumors. Preserving spinal cord function is always the aim. Uncompleted resection can lessen symptoms and limit the spread of the disease, despite the fact that it won’t cure the ailment. In order to remove tumors as safely and effectively as possible, a neurosurgeon employs a number of techniques, including lasers and intraoperative ultrasonography. Infection, hemorrhage, cerebrospinal fluid leak, weakness, sensory loss, imbalance, and tumor recurrence are possible post-operative side effects. Chemotherapy and radiation treatment are frequently used after surgery.

Surgery

Surgery to remove all or as much of the tumor as possible is likely the first step. The exception is when gliomas grow in areas where surgery becomes too risky. Surgery may suffice to cure grade 1 tumors, but it usually does not remove all high-grade tumors.

Radiation Therapy

Radiation is not advised as the first line of treatment for newly diagnosed spinal cord astrocytoma, although it can improve survival when given as adjuvant therapy following surgery. The treatment of recurrent astrocytomas includes radiotherapy as well. The use of radiation therapy (RT) is common:

• To reduce tumors in the spinal cord that do not require surgical removal.
• To reduce the size of the tumor before removal to facilitate surgery.
• To eradicate any remaining tumor cells following an inadequate excision.

A radiation oncologist performs radiation treatment, using a specialized device that accurately directs a beam of high-energy particles (such as X-rays or protons) toward the tumor. Along with other side effects including nausea, headaches, fatigue, and appetite loss, radiation therapy can also cause red, painful, and irritated skin. Additionally, tingling, weakness, or unbalance may occur.

Chemotherapy 

The treatment of glioblastoma and anaplastic astrocytoma with chemotherapy is common. Doctors can either use it before or after radiation. Implanting chemotherapeutic wafers during surgery is a possibility in some circumstances. Although refractory spinal cord Astrocytomas are now the most prevalent use of chemotherapy, their routine usage as adjuvant therapy continues to rise. After surgery, the doctors will discuss having chemotherapy with or without radiation with the parents.

Targeted therapy

Doctors may use a more recent kind of therapy called targeted therapy.  This treatment may reduce the size of the tumor. In that it targets certain proteins that promote tumor growth, this differs from chemotherapy in how it functions.

Electric-field therapy

Electric-field treatment employs electrical fields to target tumor cells while sparing healthy cells from damage. Electrodes get placed right on the body to perform the procedure. The system is known as Optune. Following surgery and radiation, it gets administered together with chemotherapy. Both those with a recent diagnosis and those whose glioblastoma has returned become eligible for its FDA-approved treatment.

Southwest Scoliosis and Spine Institute Specializes in helping patients with Spine Conditions

If you think you or a loved one might need surgery to correct any kind of complex spine surgery, you should contact a surgeon who performs these kinds of complicated and specialized procedures all the time. Actually, the Southwest Scoliosis and Spine Institute’s board-certified, fellowship-trained orthopedic surgeons, Richard Hostin, MD, Devesh Ramnath, MD, Ishaq Syed, MD, Shyam Kishan, MD, and Kathryn Wiesman, MD, have performed more than 16,000 successful spine surgeries and get recommended by other doctors all the time.  They maintain the highest level of expertise and surgical skills necessary to handle the most complicated cases and achieve successful results.

Significantly, they have also helped more than 100,000 patients get back to living a normal, pain-free life.  So, if doctors advised you that nothing can help, please call us at Southwest Scoliosis and Spine Institute, and we have offices in Dallas, Plano, and Frisco, Texas.   Finally, with our skills, knowledge, abilities, expertise, and experience, we can offer hope, remove pain, and provide better health.  If you need help, call us for an evaluation at 214-556-0555 or visit our contact page today!

____________________

American Association of Neurological Surgeons:  Astrocytoma