Pediatric Radiology > Neurological > Posterior Fossa Tumors > Cerebellar Astrocytoma

Cerebellar Astrocytoma

The most common posterior fossa tumor is an astrocytoma, typically a low-grade pilocytic type. Imaging can be variable, but the lesions are usually well defined with anterior displacement of the fourth ventricle. Lesions can be cystic with an enhancing mural nodule or solid with heterogeneous enhancement. Lesions typically do not demonstrate calcification or hemorrhage.

Head CT
MRI T2-weighted
Post contrast MRI

© Copyright Rector and Visitors of the University of Virginia 2021