Overview

Medulloblastoma is a malignant brain tumour that primarily affects children and originates in the cerebellum, a part of the brain responsible for coordination. It is one of the most common brain tumours in paediatric patients and can cause symptoms such as headaches, balance problems, and nausea. Cognitive and developmental impairments may also arise, particularly in paediatric cases, potentially affecting a child's quality of life. Treatment typically involves surgery, radiation therapy, and chemotherapy. Despite these challenges, advances in medical research and treatment modalities offer hope for improved outcomes and quality of life for those affected by this formidable disease.

Causes of Medulloblastoma

The leading cause of medulloblastoma is not fully understood. However, certain risk factors have been identified:

- Genetic mutations or syndromes include Gorlin syndrome (nevoid basal cell carcinoma syndrome) and Turcot syndrome.
- Exposure to Radiation. Previous exposure to ionising radiation, particularly in high doses, may increase the risk of developing medulloblastoma.
- Environmental Factors. Exposure to certain environmental toxins or chemicals may play a role in medulloblastoma development.
- Medulloblastoma primarily affects children, with the majority of cases occurring in those under the age of 16. It is slightly more common in males than females.
- Gene Mutations. Mutations in specific genes, such as the TP53 gene, have been identified in some cases.
- Notch Signalling Pathway. Abnormalities in the Notch signalling pathway have been implicated in medulloblastoma development.

Symptoms of Medulloblastoma

Recognising the signs and symptoms of medulloblastoma is crucial for early diagnosis and treatment. Common symptoms may include:

- Persistent, severe headaches, especially in the morning or during activities like coughing or straining.
- Nausea and vomiting
- Unsteady walking, difficulty with fine motor tasks.
- Lack of coordination.
- Visual disturbances.
- Fatigue and irritability
- Changes in behaviour or personality such as irritability or experiencing changes in mood.
- Difficulty swallowing or speech problems

Many patients experience confusion and sleepiness. It's important to note that while these symptoms are associated with medulloblastoma, they can also indicate other medical conditions. So, it's better to consult with a healthcare professional.

Diagnosis of Medulloblastoma

If medulloblastoma is suspected, a series of tests will be conducted to confirm the diagnosis and determine the extent or stage of the tumour. These may include:

- Neurological tests. Neurological examination to assess reflexes, muscle strength, coordination, and sensory perception.
- Imaging tests. Imaging tests such as MRI and CT scans of the brain and spinal cord.

[caption id="attachment_23087" align="alignnone" width="712"] CT Scan Brain Axial view[/caption]

- Biopsy. A tumour tissue sample may be collected for laboratory analysis to confirm the diagnosis.
- Lumbar puncture. This test involves collecting cerebrospinal fluid from the spine to check for the presence of cancer cells.

Treatment Options For Medulloblastoma

Treatment for medulloblastoma typically involves a combination of approaches tailored to the specific characteristics of the tumour, the patient's age, and overall health. These may include

- Surgery. The primary goal is to remove as much of the tumour as possible without causing additional neurological damage.
- Radiation therapy. It uses high-energy rays to target and kill cancer cells. It is often recommended after surgery to eliminate any remaining cancer cells.
- Chemotherapy. Powerful drugs are used to destroy cancer cells or slow their growth. It may be used before or after surgery or with radiation therapy.
- Targeted Therapy. This approach targets specific molecules or pathways involved in cancer growth and may be used with other treatments.
- Stem Cell Transplant. In some cases, high-dose chemotherapy is administered, followed by a transplant of stem cells to replenish healthy blood-forming cells.
- Clinical Trials. New treatments or combinations of treatments may be available through clinical trials.

When to Consult a Doctor

You can also get in touch with the expert Oncology doctors at Narayana Healthcare based in your city to get immediate attention and medical support during injuries, health disorders or any other health concern.

Conclusion

With proper diagnosis and treatment plans, it can reduce symptoms. Patients must work closely with their healthcare team to make informed decisions about their treatment journey.

FAQs About Medulloblastoma

Q. What are the causes of medulloblastoma? A. The exact cause of medulloblastoma needs to be better understood. It is believed to arise from genetic mutations in developing brain cells, but specific environmental factors or lifestyle choices that lead to these mutations are unknown.

Q. What are the common symptoms of medulloblastoma? A. The symptoms of medulloblastoma can vary, but common signs may include headaches, nausea and vomiting, problems with balance and coordination, changes in vision, irritability, and behavioural changes, particularly in children.

Q. What is the first-line treatment for medulloblastoma? A. The first-line treatment for medulloblastoma typically involves a combination of surgery, radiation therapy, and chemotherapy. The approach may vary based on factors like the patient's age, overall health, tumour location, and subtype. It is crucial to consult with a medical team for personalised treatment recommendations.

Q. Can medulloblastoma be cured? A. If detected and treated early. But sometimes, all treatment options fail to cure due to fast progress in growth. However, the prognosis depends on factors like tumour type, location, and the patient's overall health.

Q. Can medulloblastoma recur after treatment? A. Unfortunately, medulloblastoma can recur even after successful treatment. Regular follow-up appointments and imaging scans are essential to monitor for any signs of recurrence.