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

Callosal dysgenesis and lipoma

Case contributed by Frank Gaillard
Diagnosis certain
ultrasound

Transcranial ultrasound of an infant demonstrates a hyperechoic mass in the midline associated with callosal dysgenesis. 

MRI demonstrates dysgenesis of the corpus callosum, with only the genu seen and without a formed rostrum. In the midline is an interhemispheric lesion which is of high T1 signal, and demonstrates signal drop out on fat-saturated sequences consistent with a pericallosal lipoma. 

Case Discussion

Typical features of corpus callosum dysgenesis with an associated tubulonodular pericallosal lipoma.

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.