Global Journal For Research Analysis (GJRA)

Dr.Lokesh Rana; Dr.Pawan Soni; Dr.Dinesh Sood

Volume : VI, Issue : V, May - 2017

MRI and CT of Anterior clinoid process pneumatisation causing ipsilateral fourth cranial nerve palsy

Dr. Lokesh Rana, Dr. Pawan Soni, Dr. Dinesh Sood

Abstract :

We present a case report of a patient who presented with history of diplopia since two years and head tilt towards right side. After clinician�s assessment patient was send to our department for MRI ain scan to find out cause of Right fourth cranial nerve. Over- pneumatised Right sided anterior clinoid process appears hypointense on all pulse sequences impinging upon rt.superior orbital fissure and may mimic the flow void of an aneurysm. However CT scan was done and it was confirmed that over-pneumatised anterior clinoid process impinging the superior orbital fissure causing fourth nerve palsy. We concluded that though rare asymmetrical aneurysm should be included in differential diagnosis of fourth nerve palsy.