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Subarachnoid hemorrhage from a thoracic radicular artery pseudoaneurysm after methamphetamine and synthetic cannabinoid abuse: case report.

ABSTRACT: Background Context Isolated spinal artery aneurysms not associated with vascular malformations are exceedingly rare. Purpose To present a rare case of subarachnoid hemorrhage after thoracic radiculomedullary artery pseudoaneurysm rupture in a patient who abused synthetic cannabinoids and methamphetamines. Study Design Case report. Methods A 41-year-old man with a history of polysubstance abuse presented with acute-onset headache, back pain, and transient bilateral lower-extremity numbness. He reported daily use of the synthetic cannabinoid "Spice." He denied use of other illegal drugs, but laboratory testing was positive for methamphetamines. Magnetic resonance imaging showed a focal hematoma at T2-3, and spinal angiography was negative for vascular abnormalities; however, a follow-up angiogram 6 days later revealed interval development of an irregular dilation of the left T3 radiculomedullary artery originating from the left supreme intercostal artery. Results Surgical trapping and resection of the lesion yielded a good clinical outcome. Conclusions Although two previous case reports have described patients with thoracic radiculomedullary pseudoaneurysm causing spinal subarachnoid hemorrhage (SAH), this is the first reported case associated with synthetic cannabinoids and methamphetamine abuse. Although this diagnosis is exceptionally rare, clinical presentation of SAH with associated back pain and lower-extremity symptoms warrants an aggressive imaging workup. Even in the setting of negative angiography, repeat cerebral and spinal angiograms may be necessary to identify a potentially treatable cause of spinal SAH.

SUBMITTER: Ray WZ

PROVIDER: S-EPMC3854594 | biostudies-other | 2013 Jun

REPOSITORIES: biostudies-other

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