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Updated: May 18, 2026

Intraoperative Ultrasound in Spinal Surgery
Published on: August 17, 2022
Spinal subdural hematoma mimicking epidural lipomatosis
Minobu Kamo1, Yoshiyuki Watanabe, Yuji Numaguchi
1Department of Radiology, St. Luke's International Hospital, Chuo-ku Tokyo, Japan. kamomino@luke.or.jp
Abstract:
We report a case of spinal subdural hematoma in the lumbar spine of a 75-year-old woman. Magnetic resonance imaging showed lesions of homogeneous high intensity in the spinal canal on both T₁- and T₂-weighted images, findings closely resembling those for epidural lipomatosis. Identification of 2-layered signal intensity surrounding the cauda equina on axial images is the key for accurate diagnosis.
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