Pilocytic astrocytoma

Case contributed by Fazel Rahman Faizi
Diagnosis probable


Severe headache, vomiting and difficulty in walking.

Patient Data

Age: 10 years
Gender: Male

A large predominantly cystic mass lesion with some solid enhancing component is noted within the right cerebellar hemisphere causing effacement and compression of the fourth ventricle with resultant moderate dilatation of the proximal ventricular system. Mild surrounding vasogenic edema is noted.
No diffusion restriction on DWI/ADC sequences. No dropout signal on SWI sequence.

Case Discussion

Pilocytic astrocytoma is considered as grade I astrocytoma by the World Health Organization (WHO). It is most common during the first two decades of life and most commonly located within the cerebellum.



Dr. Farhad Farzam has also contributed to this case.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.