Intraosseous arachnoid granulations

Case contributed by Elsayed Mohamed Elsayed Galbat
Diagnosis almost certain

Presentation

Non-Hodgkins lymphoma with CNS involvement subjected to bone marrow transplantation

Patient Data

Age: 60 years old
Gender: Male

Occipital bone lytic areas are noted likely representing intraosseous arachnoid granulation

The described areas at the occipital bone in CT followed CSF signal intensity on MRI sequences. 

Case Discussion

Prominent arachnoid granulations are an anatomical variant that could be mistaken as skull pathology.

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.