About Pediatric Brain Cancer

Overview

Brain cancer in children refers to the presence of abnormal cell growth in the brain that forms masses or tumors. These tumors can be classified into different types based on the type of cells they are composed of and their location in the brain. Some key points about brain cancer in children include:

  • Not all brain tumors in children are cancerous; some are benign (noncancerous)
  • The most common type of benign brain tumor in children is low-grade astrocytoma
  • High-grade astrocytomas and ependymomas are malignant (cancerous) tumors that form in the glial brain cells
  • Medulloblastoma is another malignant tumor that typically forms in the cerebellum (the part of the brain that controls movement, balance and posture) and can spread to other areas of the brain or spinal cord
  • Brain cancer is the second most common type of cancer in children after leukemia
  • Survival rates for children with brain tumors have increased significantly, but treatment-related side effects and long-term consequences are still a concern

It's important to consult with a healthcare professional for an accurate diagnosis, treatment options, and personalized advice.

Causes and Risk Factors

The causes of brain cancer in children are not fully understood. Brain tumors, including cancerous brain tumors, start when brain cells develop changes (mutations) in their DNA. Exactly why this occurs is not known.

A few risk factors that have been identified:

  • Genetic predispositions: Rare inherited syndromes can increase the risk of developing brain tumors in children. These genetic alterations contribute to the progressive accumulation of genetic and epigenetic alterations in the brain.
  • High-dose ionizing radiation: Exposure to high levels of radiation, such as from therapeutic radiation or nuclear explosions, is a well-documented risk factor for brain tumors in children.
  • Environmental exposure: Maternal exposure to risk factors such as ionizing radiation, pesticides, and environmental pollution during pregnancy may contribute to an increased incidence of brain tumors in children.

It's important to note that while these risk factors have been identified, they do not guarantee the development of brain cancer in children. It's always best to consult with a healthcare professional for personalized advice and guidance.

Symptoms

Common symptoms of brain cancer in children include:

  • Headaches, especially in the morning
  • Headaches accompanied by vomiting
  • Nausea and vomiting
  • Balance issues
  • Difficulty walking
  • Changes in vision, hearing, and speech
  • Excessive fatigue
  • Personality and behavior changes

As brain cancer progresses, other symptoms may occur, such as:

  • An enlargement of the head (most common in babies)
  • Seizures
  • Feelings of pressure inside the skull
  • Sudden onset of vision problems
  • Motor problems, including weakness or paralysis, lack of coordination, or gradual loss of sensation or movement in an arm or leg
  • Balance problems, including dizziness, trouble walking, clumsiness, or loss of equilibrium

It's important to note that these symptoms can also be caused by other conditions. If your child is experiencing any of these symptoms, it's essential to consult a healthcare professional for an accurate diagnosis.

Diagnosis

To diagnose brain cancer in children, the following examinations, tests, and procedures are commonly performed:

  • Physical examination: The doctor will conduct a thorough physical and neurologic examination to assess reflexes, balance, and coordination.
  • Eye examination: A special instrument may be used to examine the back of the child's eyes for signs of swelling in the brain.
  • Imaging tests: CT scan or MRI scans are often performed to look for signs of a brain tumor.
  • Blood tests: Blood tests may be used to look for markers of brain tumors in the child's blood.
  • Biopsy: A biopsy may be taken from the tumor to determine its type.

Additional examinations, tests, and procedures may be performed based on initial findings or individual factors. Additional testing may help discriminate between low and high-grade tumors and different tumor subtypes.

It's important to note that these are general procedures, and each case may require a personalized approach. Always consult with a healthcare professional for specific recommendations based on your child's condition.

Treatment Options

The goals of treatment for brain cancer in children are to effectively target and eliminate the tumor while minimizing long-term side effects. Treatment may include one or more of the following:

  • Surgery: The primary goal of surgery is to remove as much of the tumor as possible without causing damage to the brain. This helps to reduce the size of the tumor and relieve symptoms.
  • Chemotherapy: Chemotherapy involves the use of drugs to kill cancer cells or slow their growth. It can be used before surgery to shrink the tumor, after surgery to kill any remaining cancer cells, or in combination with radiation therapy.
  • Radiation therapy: Radiation therapy uses high-energy beams to destroy cancer cells. It is often used after surgery or in cases where complete surgical removal is not possible. The goal is to target and kill any remaining cancer cells while minimizing damage to healthy brain tissue.
  • Medications: Children may be prescribed medications to manage symptoms associated with brain tumors. For example, anticonvulsants may be given for seizures, and steroid medications may be used to reduce brain swelling.
  • Clinical trials: Clinical trials explore new therapies and medications that may improve treatment outcomes for children with brain cancer. These trials aim to find more targeted and effective treatments while minimizing long-term side effects. It is important to consult with the healthcare provider regarding the child’s specific situation to determine if a clinical trial is a potential option.

It's important to note that treatment plans may vary depending on the type, grade, and location of the tumor. Each treatment option works towards achieving the goals of reducing tumor size, eliminating cancer cells, and improving the child's quality of life. However, it's essential for parents and caregivers to consult with healthcare professionals who can provide personalized treatment recommendations based on the child's specific condition.

Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Side effects can occur. Check with your health care professional or read the information provided with your medication for additional side effect information.