Resection of a Thoracic Intradural Extramedullary Cavernoma Using Real-Time Intraoperative Ultrasound: 2-Dimensional Operative Video

Thoracic root–related intradural extramedullary cavernoma presenting with subarachnoid hemorrhage: illustrative case

“… 1–4 , 6–15 Remarkably, within this rare category, only 4 presented with SAH, and the remainder presented with subacute-chronic radiculopathy, myelopathy, and/or back pain. 12 , 13 …”

“…In a comprehensive review of all previously documented surgically treated intradural extramedullary cavernomas, we found that only 14 were root-related thoracic variants (Table 1). [1][2][3][4][6][7][8][9][10][11][12][13][14][15] Remarkably, within this rare category, only 4 presented with SAH, and the remainder presented with subacute-chronic radiculopathy, myelopathy, and/or back pain. 12,13 Approximately 15% of intracranial SAH cases ultimately remain cryptogenic.…”

“…in 1965, in a young patient experiencing sphincter dysfunction. 3 , 12 , 13 Overall, 72 surgically treated cases have been reported in the literature. 12 , 13 …”

“…6,[9][10][11] The first description of an intradural extramedullary cavernoma dates back to 1903 in an autopsy report, and the first resection was detailed by Hirsch et al in 1965, in a young patient experiencing sphincter dysfunction. 3,12,13 Overall, 72 surgically treated cases have been reported in the literature. 12,13 In the current work, we present a thoracic root-related cavernoma whose clinical presentation included cortical subarachnoid hemorrhage (SAH) initially with no clear etiology, followed by acute midthoracic back pain and myelopathy.…”

“…3,12,13 Overall, 72 surgically treated cases have been reported in the literature. 12,13 In the current work, we present a thoracic root-related cavernoma whose clinical presentation included cortical subarachnoid hemorrhage (SAH) initially with no clear etiology, followed by acute midthoracic back pain and myelopathy. This progression ultimately led to surgery, which confirmed the diagnosis.…”