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Journal of Korean Neurosurgical Society 2002;31(1): 89-94.
Nontraumatic Spinal Epidural Hematoma - An Analysis of The Etiology -.
Dae Young Hong, Mun Chul Kim, Sang Pyung Lee, Gi Hwan Choi, Hyung Tae Yeo
Department of Neurosurgery, School of Medicine, Catholic University of Taegu, Taegu, Korea.
Spontaneous spinal epidural hematoma is a rare entity. Various definitions for spontaneous epidural hematoma have been reported in the literature. The expression of nontraumatic spinal epidural hematoma seems to be less ambiguous and includes idiopathic hematomas and hematomas secondary to coagulopathy, vascular malformations, and tumors. We report three cases of nontraumatic spinal epidural hematomas observed from 1991 to 2000. The causes of the spinal epidural hematomas were not clear in two cases among them, but in the another one case, the cause was determined to be an acquired coagulopathy. We reviewed 24 cases reported in the Korean Journal of Neurosurgery and our three cases with particular emphasis on the various causes such as coagulopathy, vascular malformations and tumors. Among the 27 cases, numerous causes were detected such as three cases of vascular malformation, one case of anticoagulant treatment, five cases of combined lumbar disc herniation, two cases associated with pregnancy and postpartum, one case associated with hypertension, and one case associated with ossification of ligamentum flavum. No causes were detected in the ten cases. The authors reviewed the literature.
Key Words: Nontraumatic spinal epidural hematoma; Etiology
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