Pure isolated unilateral internuclear ophthalmoplegia from ischemic origin: report of a case and literature review.
OBJECTIVE
To report a case of pure isolated unilateral internuclear ophthalmoplegia from ischemic stroke, and to review its literature.


METHODS
A 55-year old man, with a history of long-standing diabetes mellitus, developed acute-onset left internuclear ophthalmoplegia. MRI revealed a small paramedian dorsal pontine infarct ventral and lateral to the aquaductus cerebri. Intracranial MR angiography was normal. A systematic search was performed of the literature from January 1980 to December 2004 by using MEDLINE and EMBASE. Case reports with or series including patients with negative MRI findings were excluded.


RESULTS
Nine cases of pure isolated MRI-proven unilateral INO resulting from ischemic stroke including this one, have been reported. In over 75% recovery was reported.


CONCLUSIONS
Isolated unilateral internuclear ophthalmoplegia can be the sole manifestation of ischemic stroke and generally carries a good prognosis.
Department of Neurology (Medicine), Hamad Medical Corporation, P.O. Box 3050, Doha, State of Qatar. doc_deleu@hotmail.com
D
D
Deleu
T
T
Sokrab
K
K
Salim
A
A
El Siddig
A A
AA
Hamad
D048909:Diabetes Complications; D007839:Functional Laterality; D006801:Humans; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D015835:Ocular Motility Disorders / Q000209:etiology* / Q000473:pathology; D011149:Pons / Q000473:pathology*; D011379:Prognosis; D020521:Stroke / Q000150:complications* / Q000473:pathology