Annals of Internal Medicine: Clinical Cases · Published 2026-07-01 · DOI 10.7326/aimcc.2025.1334
Tirth Patel, Sumanth Khadke, James Thomas, Peter Mattingly
Neurocysticercosis (NCC) remains the most common parasitic infection of the central nervous system worldwide and is a leading cause of acquired epilepsy in endemic regions. The racemose variant, characterized by cyst proliferation in subarachnoid spaces without identifiable scolices, poses unique diagnostic challenges due to its atypical imaging findings and clinical presentations. We present a case of racemose NCC in a 30-year-old Guatemalan immigrant whose initial magnetic resonance imaging findings mimicked subarachnoid hemorrhage, leading to tertiary transfer for aneurysmal work-up. This case illustrates critical learning points regarding the recognition of NCC variants, appropriate diagnostic work-up, and the importance of epidemiologic risk stratification in patients with meningeal symptoms.
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Patel, T., Khadke, S., Thomas, J., et al. (2026). Racemose Neurocysticercosis Presenting as Subarachnoid Hemorrhage Mimic. Annals of Internal Medicine: Clinical Cases. https://doi.org/10.7326/aimcc.2025.1334