{"id":"dcbb2782-b17c-485f-83fa-327e45eb4b09","slug":"a-rare-case-of-lumbar-intraspinal-osteolipoma-presenting-with-a-sciatic-pain","title":"A rare case of lumbar intraspinal osteolipoma presenting with a sciatic pain","authors":["Daishiro Abe","Kiyoshi Ito","Tetsuyoshi Horiuchi"],"abstract":"Background: Osteolipoma constitutes <1% of all lipomas. They are only rarely located in the spine. Here, we report an extremely rare lumbar intraspinal osteolipoma, along with a review of its clinical and radiological features. Case Description: A 57-year-old male presented with a 1-year history of progressively worsening of his sciatica. The magnetic resonance imaging (MRI) revealed a right-sided extradural lesion compressing the cauda equina at the L3/L4 level. The lesion was hyperintense with a hypointense rim on both T1- and T2-weighted images, while the computed tomography (CT) showed that it was hyperdense (i.e., osseous). Following operative resection, the patient’s symptoms resolved. Pathologically, it proved to be a benign osteolipoma. Conclusion: MRI and CT studies documented a L3/4 extradural, osseous lesion causing cauda equina compression. Following surgical removal, the patient’s symptoms fully resolved.","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/dcbb2782-b17c-485f-83fa-327e45eb4b09/featured/hero-1781558609957.png","publishDate":"2025-05-23T00:00:00.000Z","doi":"10.25259/SNI_281_2025","categories":["Spine","Case Report"],"fullTextUrl":"https://surgicalneurologyint.com/wp-content/uploads/2025/05/13574/SNI-16-195.pdf"}