Inflammatory aneurysm and neurocysticercosis: Further evidence for a causal relationship? Case report

OBJECTIVE AND IMPORTANCE: Two cases of inflammatory aneurysms in patients w ith neurocysticercosis have been reported previously. Clinical and radiogra phic studies suggest a causal relationship. CLINICAL PRESENTATION: A man with neurocysticercosis presented with an acut e subarachnoid hemorrhage from a left middle cerebral artery aneurysm. INTERVENTION: The patient underwent a craniotomy and clipping of his aneury sm. Diffuse inflammatory changes and multiple cysticercal cysts were found throughout the left sylvian fissure. CONCLUSION: The patient had an uneventful recovery. Angiography suggested a n inflammatory rather than a congenital aneurysm. Although rare, neurocysti cercosis may induce aneurysm formation in the appropriate setting.