LIVING ART ENTERPRISES, LLC / SCIENCE PHOTO LIBRARY LIVING ART ENTERPRISES, LLC / SCIENCE PHOTO LIBRARY
This contrast enhanced axial (cross sectional) MRI image through the posterior fossa shows a well circumscribed, partially cystic mass with a solid region of pathologic enhancement along the back wall of the mass. This mass is located in the left cerebellum. There is mass effect with compression of the fourth ventricle. This is a typical appearance of a benign pilocytic astrocytoma, which are often found in the pediatric age group. This is one of the few truly benign neoplasms of the brain which when completely resected results in a cure. An astrocytoma is a type of glioma which is the most common type of primary cerebral neoplasm (tumour-). Gliomas arise from the supporting elements in the brain.
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