What is intra-axial tumor?

What is intra-axial tumor?

Brain tumors that are rooted in the brain Parenchyma are referred to as intra-axial. If the origin of the tumor is outside of the brain (or it is due to metastasis), it is called extra-axial (4, 5).

What is an axial lesion?

Abstract. Extra-axial tumors are lesions, neoplastic and not, which are external to the brain parenchyma and can originate in the skull, meninges, cranial nerves, and brain appendages such as the pituitary gland. Surgery provides a diagnosis and can be the first step in the treatment.

What is a mass lesion in the brain?

A lesion is an area of tissue that has been damaged through injury or disease. So a brain lesion is an area of injury or disease within the brain.

How common is pilocytic astrocytoma?

The incidence rate of pilocytic astrocytoma is very low. It’s estimated to occur in just 14 out of every 1 million children younger than 15 years of age. The tumor occurs in equal rates in boys and girls. At the current time, there is no known way to prevent or reduce the risk of a pilocytic astrocytoma in your child.

What causes GBM brain tumor?

The causes of glioblastoma are largely unknown. However, it often occurs in people with rare genetic conditions – Turcot syndrome, neurofibromatosis type 1 and Li Fraumeni syndrome – due to mutations in a specific gene that causes many of the characteristic features of glioblastoma.

What is extra axial space in the brain?

The brain is surrounded by cerebrospinal fluid (CSF) within the sulci, fissures and basal cisterns. CSF is also found centrally within the ventricles. The sulci, fissures, basal cisterns and ventricles together form the ‘CSF spaces’, also known as the ‘extra-axial spaces’.

What is the difference between a brain lesion and a brain tumor?

Broadly speaking, brain lesions consist of certain types of damage to the tissues of the brain. Trauma to the head, certain health conditions, and tumors (malignant or benign) are all considered brain lesions. The causes of brain lesions vary from person to person.

Are there any intra-axial mass-like lesions of the brain?

There are peculiar posttreatment imaging phenomena that can present as intra-axial mass-like lesions (such as pseudopro … There is a wide variety of intra-axial primary and secondary brain neoplasms. Many of them have characteristic imaging features while other tumors can present in a similar fashion.

What is intra-axial brain cancer?

Intra-axial is a term that denotes lesions that are within the brain parenchyma, in contrast to extra-axial, which describes lesions outside the brain, and intraventricular, which denotes lesions within the ventricular system.

What does intra axial mean in medical terms?

Intra-axial. Intra-axial is a term that denotes lesions that are within the brain parenchyma, in contrast to extra-axial, which describes lesions outside the brain, and intraventricular, which denotes lesions within the ventricular system.

What is the difference between intra and extra-axial mass?

In the same way, an extra-axial mass can press on the surface of the brain and may look to be inside, but it is still outside the brain. Figure 1. An extra-axial mass resides on the outside of the brain, while an intra-axial mass resides within the brain itself.