Giant parietal foramina

Case contributed by Abhinav Ranwaka
Diagnosis certain



Patient Data

Age: 25 years
Gender: Female

Bilateral oval-shaped parietal lucent areas.


Large symmetric defects in bilateral parietal bones, in parasagittal location, with well smooth, sharp margins, and without any associated soft tissue or vascular malformation.

Case Discussion

Giant parietal foramina (GPF) (also foramina parietalia permagna, fenestrae parietals symmetricae) are symmetric bone defects caused by deficient ossification around the parietal notch. They are usually asymptomatic and can occur as an isolated finding or a part of a syndrome associated with gene defects. Occasionally, they can be associated with a vascular or cortical malformation and can present as epilepsy, headache, or other CNS complaints.

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.