A 21-year-old woman from Mexico presented to our emergency department after 3 days of frontal headache, nausea, and vomiting. She had a history of seizures secondary to neurocysticercosis. Soon after presentation, she became drowsy and confused. Magnetic resonance imaging revealed a cystic lesion in the posterior third ventricle and obstructive hydrocephalus (Figure). She regained alertness soon after placement of an external ventricular drain.
Gordon E, Cartwright M, Avasarala J. Ventricular Obstruction From Neurocysticercosis. Arch Neurol. 2005;62(6):1018. doi:10.1001/archneur.62.6.1018