Astrocytoma can occur at any age, but the age at which it is most common can vary depending on the specific subtype and grade of the tumour. Here are some general trends:
Pilocytic Astrocytoma: Pilocytic astrocytomas, which are low-grade tumours, are most commonly diagnosed in children and young adults. The peak incidence occurs in the first two decades of life, with a median age at diagnosis of around 10 to 12 years old. Pilocytic astrocytomas can occur in various parts of the brain, including the cerebellum, optic pathway, and cerebral hemispheres.
Diffuse Astrocytoma: Diffuse astrocytomas, including low-grade and anaplastic astrocytomas, can occur at any age, but they are more commonly diagnosed in adults. The incidence increases with age, and the peak occurrence is typically in middle-aged and older adults.
Glioblastoma: Glioblastoma, which is the most aggressive and malignant form of astrocytoma, can occur at any age, but it becomes increasingly more common in older adults. The peak incidence of glioblastoma is in individuals over 60 years of age. However, glioblastomas can also occur in younger individuals, albeit less frequently.
It's important to note that these are general age ranges, and individual cases can vary. The specific age at which astrocytoma occurs can be influenced by various factors, including genetic predisposition, environmental exposures, and other individual characteristics. Additionally, astrocytomas can occur in rare cases in infants and older adults outside the typical age ranges mentioned above.
If you have concerns about astrocytoma or any specific age-related trends, it's best to consult with a healthcare professional or neuro-oncologist. They can provide more detailed information based on the specific subtype and characteristics of the tumour.