Tatiana Goyanna Lyra MD, Presenter: Nothing to Disclose

Samir El-Kadum Noujaim MD, Abstract Co-Author: Nothing to Disclose

Lucas Nunes Silva MD, Abstract Co-Author: Nothing to Disclose

Luis Filipe de Souza Godoy MD, Abstract Co-Author: Nothing to Disclose

Eloisa Maria Santiago Gebrim MD, Abstract Co-Author: Nothing to Disclose

The purpose of this exhibit is: 1. To review and understand the anatomy of lower cranial nerves (IX, X, XI and XII) using original drawings, CT and MR images. 2. To present a variety of common and uncommon pathologies that affect the lower cranial nerves using CT and MRI images from our digital archives emphasizing important findings and their differential diagnosis.

The authors will discuss the normal anatomy of the lower cranial nerves and their relationship with the corresponding anatomic structures. It will include practical review of the jugular fossa and the hypoglossal canal using original drawings, CT and MRI images. Several pathologic conditions will be presented with emphases on imaging findings and differential diagnosis. Pathologic conditions to be presented include, but not limited to: primary and extrinsic tumors ( schwannoma, neurofibroma, paraganglioma, meningioma, metastasis), jugular fossa syndrome (Vernet’s syndrome), vocal cord paralysis caused by high and lower vagus nerve injury, denervation atrophy, perineural tumor spread, infectious (Lyme’s disease), autoimmune conditions, Wallenberg syndrome, carotid artery dissection, glossopharyngeal neurovascular conflict.

http://abstract.rsna.org/uploads/2014/14014759/14014759_q3ph.pdf

Lyra, T, Noujaim, S, Silva, L, Godoy, L, Gebrim, E, Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) of Lower Cranial Nerves (IX, X, XI and XII): A Pictorial Essay.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14014759.html