{"id":"d5ab13ae-82c7-4675-874a-4b70dcffa833","slug":"a-case-of-dumbbell-shaped-epidural-cavernous-angioma-in-the-lumbar-spine","title":"A case of dumbbell-shaped epidural cavernous angioma in the lumbar spine","authors":["Masatoshi Yunoki","Kenta Suzuki","Atsuhito Uneda","Kimihiro Yoshino"],"abstract":"Background: Most spinal cavernous haemangiomas occur in the vertebral body and purely extradural cavernous hemangiomas without any vertebral body involvement is rare and account for only 4% of all extradural spinal tumors. Dumbbell-shaped spinal cavernous angioma is extremely rare, only 10 cases have been reported in the literature. Case Description: A 77-year-old female presented with a one-year history of lumbago and right-sided L3 dermatomal hypoesthesia. A dumbbell mass at the L2/3 vertebral level was identified on lumbar MRI. The lesion was irregularly shaped and isointense on T1W and hyperintense on T2W and DWI images with homogenous contrast enhancement. A presumptive diagnosis was schwannoma, but other malignant neoplasms were also considered because of its irregular shape, minimally dilated neural foramen and the involvement of the non-enhanced L3 nerve root. The patient underwent surgery with a lateral extracavitary approach. A histopathological examination revealed cavernous hemangioma. Conclusion: Cavernous hemangioma should be included in the differential diagnosis of dumbbell-shaped spinal tumors when the intervertebral foramina is not highly dilated and non-enhanced nerve root is identified in the tumor.","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/d5ab13ae-82c7-4675-874a-4b70dcffa833/featured/hero-1782420840690.png","publishDate":"2015-06-25T00:00:00.000Z","doi":"10.4103/2152-7806.159378","categories":["Spine","Case Report"],"fullTextUrl":"http://surgicalneurologyint.com/wp-content/uploads/2015/07/6107/SNI-6-309.pdf"}