IMPORTANT: We currently have a number of bugs related to image cropping and are actively trying to resolve them. In the meantime, we have disabled cropping. Apologies for any inconvenience. Stay informed: radiopaedia.org/chat

Psoas abscess

Case contributed by Ayush Goel
Diagnosis almost certain

Presentation

Back ache and vomiting for the last 7 days

Patient Data

Age: 25 yrs
Gender: Female
ultrasound

Heterogeneously hypoechoic collection with multiple foci of gas, measuring  8.3 x 3.2 cm noted in the right psoas muscle.

Case Discussion

Psoas muscle abscess and fluid collections are located in the retrofascial space rather than in the retroperitoneal space because the psoas muscles are located in the iliopsoas compartment posterior to the transversalis fascia, which is the posterior boundary of the retroperitoneum.

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.