PMID: 8956165Dec 1, 1996Paper

Superficial siderosis and episodic fourth nerve paresis. Report of a case with clinical and magnetic resonance imaging findings

Journal of Neuro-ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society
M Hashimoto, W F Hoyt

Abstract

We describe a patient with superficial siderosis who had an episodic unilateral fourth nerve paresis. The superficial siderosis was caused by small repeated intraventricular hemorrhages from a periventricular cavernous angioma. T2-weighted magnetic resonance images demonstrated a rim of low signal intensity at the brain surface, characteristic of hemosiderin deposition. These low-signal-intensity deposits included the dorsal brain stem around the anterior medullary velum. We suggest that the hemosiderin deposits affected the proximal portion of the fourth nerve where it contains central myelin and that this in some way caused unstable conduction of nerve impulses through the nerve.

Citations

Mar 11, 2009·Neuro-Chirurgie·M LévêqueM W Bojanowski
Jan 5, 2002·Seminars in Ultrasound, CT, and MR·B Eisenkraft, A O Ortiz
Aug 1, 1998·Seminars in Ultrasound, CT, and MR·A S Mark
Mar 22, 2002·Acta Ophthalmologica Scandinavica·Anastassia Alexandridou, Panagiota Stavrou
Jan 25, 2014·The British Journal of Ophthalmology·Bhavna ChawlaSanjay Sharma

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