Unilateral optic neuropathy following subdural hematoma: A case report

被引：5
作者：
Kretz A. [1 ]
Preul C. [1 ]
Fricke H.-J. [2 ]
Witte O.W. [1 ]
Terborg C. [3 ]
机构：
[1] Department of Neurology, University of Jena, Medical School, Jena D-07747
[2] Department of Internal Medicine, Haemato-Oncology, University of Jena, Medical School, Jena D-07747
[3] Department of Neurology, Asklepios Klinik St. Georg, Hamburg D-20099
来源：
Journal of Medical Case Reports | / 4卷 / 1期
关键词：
Optic Nerve; International Normalize Ratio; Optic Neuropathy; Subdural Hematoma; Retinal Artery Occlusion;
D O I：
10.1186/1752-1947-4-19
中图分类号：
学科分类号：
摘要：
Introduction. Unilateral optic neuropathy is commonly due to a prechiasmatic affliction of the anterior visual pathway, while losses in visual hemifields result from the damage to brain hemispheres. Here we report the unusual case of a patient who suffered from acute optic neuropathy following hemispherical subdural hematoma. Although confirmed up to now only through necropsy studies, our case strongly suggests a local, microcirculatory deficit identified through magnetic resonance imaging in vivo. Case presentation. A 70-year-old Caucasian German who developed a massive left hemispheric subdural hematoma under oral anticoagulation presented with acute, severe visual impairment on his left eye, which was noticed after surgical decompression. Neurologic and ophthalmologic examinations indicated sinistral optic neuropathy with visual acuity reduced nearly to amaurosis. Ocular pathology such as vitreous body hemorrhage, papilledema, and central retinal artery occlusion were excluded. An orbital lesion was ruled out by means of orbital magnetic resonance imaging. However, cerebral diffusion-weighted imaging and T2 maps of magnetic resonance imaging revealed a circumscribed ischemic lesion within the edematous, slightly herniated temporomesial lobe within the immediate vicinity of the affected optic nerve. Thus, the clinical course and morphologic magnetic resonance imaging findings suggest the occurrence of pressure-induced posterior ischemic optic neuropathy due to microcirculatory compromise. Conclusion. Although lesions of the second cranial nerve following subdural hematoma have been reported individually, their pathogenesis was preferentially proposed from autopsy studies. Here we discuss a dual, pressure-induced and secondarily ischemic pathomechanism on the base of in vivo magnetic resonance imaging diagnostics which may remain unconsidered by computed tomography. © 2010 Kretz et al; licensee BioMed Central Ltd.
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