Periaqueductal gray matter

Case contributed by Coenraad Hattingh
Diagnosis certain

Presentation

Healthy control subject.

Patient Data

Gender: Male

Axial T2WI through midbrain

mri

Normal study in the axial plane through the level midbrain demonstrating the cerebral aqueduct of Sylvius and the PAG.

Annotated image

Normal study in the axial plane through the level midbrain demonstrating the cerebral aqueduct of Sylvius and the PAG: 

  • a = high T2 signal indicating the PAG
  • b = flow void indicates the cerebral aqueduct of Sylvius

Case Discussion

T2WI demonstrates the periaqueductal gray (PAG) matter.

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.