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Updated: Jun 20, 2026

Spinal Cord Lateral Hemisection and Asymmetric Behavioral Assessments in Adult Rats
Published on: March 24, 2020
Spontaneous spinal epidural hematoma with unusual hemiparesis alternating from one side to the other side
Yuji Kato1, Hidetaka Takeda, Daisuke Furuya
1Department of Neurology and Cerebrovascular Medicine, Saitama International Medical Center, Saitama Medical University, Saitama, Japan. yujik@saitama-med.ac.jp
Abstract:
A 59-year-old woman suffered from sudden onset of severe neck and back pain. She experienced right-side hemiparesis. Although the right-side hemiparesis soon disappeared, left-side hemiparesis developed. MRI of the brain was unremarkable. MRI of the cervical spine demonstrated hematoma in the left posterior epidural space at the C2/3 level. The spinal cord was compressed not only by a degenerative disc of the ventral region, but also by hematomas of the dorsal region. The unusual hemiparesis alternating from right-side to left-side in this case may have been caused by various factors, including cervical canal stenosis, the spread of hematoma, disturbance of blood flow, and distribution of stress and strain.
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