Pneumosinus dilatans frontalis

Case contributed by Huda B. Gharbia
Diagnosis almost certain

Presentation

Headache

Patient Data

Age: 30 years
Gender: Male

There is dilatation and hyperpneumatization of both frontal sinuses without thinning of its bony walls.

Widening subarachnoid spaces in both cerebral hemispheres, prominent folia of superior vermis, likely atrophic changes.

Widening CSF space posterior to cerebellum, with arachnoid folds in it, widening cisterna magna.

Pineal cyst is noted with fluid content exhibits CSF signal.

Case Discussion

Pneumosinus dilatans is a term given to an enlarged aerated paranasal sinus (hyperpneumatisation) without thinning of its bony walls. 

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.