Case contributed by Henry Knipe


Twisted knee at soccer.

Patient Data

Age: 25
Gender: Male

No fracture. Small knee joint effusion. Incidental note of fabella. 

Annotated image

Red circle highlights position of the fabella on the frontal projection. 

Case Discussion

This case is a good example of a large fabella, especially on the frontal projection where they are not as readily identified. 

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.