Journal of Neuro-Ophthalmology

Skip Navigation LinksHome > June 1998 - Volume 18 - Issue 2 > Eight-and-a-Half Syndrome: One-and-a-Half Syndrome Plus Cran...
Journal of Neuro-Ophthalmology:
Article: PDF Only

Eight-and-a-Half Syndrome: One-and-a-Half Syndrome Plus Cranial Nerve VII Palsy.

Eggenberger, Eric D.O.

Collapse Box


Three cases of isolated one-and-a-half syndrome with facial nerve palsy related to infarction are presented. Magnetic resonance imaging in cases 1 and 2 was unremarkable, whereas magnetic resonance angiography demonstrated pathophysiologically significant vertebral basilar disease. Case 3 is unique due to its association with giant cell arteritis. Ipsilateral adduction improved to a greater extent than abduction in each case, perhaps providing insight into the exact localization of these lesions or selective vulnerability of the ocular motor structures within the pons. This combination of clinical findings, termed the 8-1/2 syndrome (cranial nerve 7 + 1-1/2), allows precise localization, and magnetic resonance angiography appears to be the imaging study of choice.

(C) Williams & Wilkins 1998. All Rights Reserved.


Article Tools


Article Level Metrics

Search for Similar Articles
You may search for similar articles that contain these same keywords or you may modify the keyword list to augment your search.