A 22-year-old woman who recently emigrated from rural Mexico is brought to the emergency department 20 minutes after gen

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A 22-year-old woman who recently emigrated from rural Mexico is brought to the emergency department 20 minutes after generalized tonic-clonic seizure .She has a 6-week history of headaches, nausea, vomiting, and decreased visual acuity. Funduscopic examination shows bilateral papilledema. An MRI of the brain shows enlargement of the right ventricle and findings consistent with cysticercosis. Which of the following is the most likely mechanism of the hydrocephalus in this patient?


A) Obstruction of the cerebral aqueduct
B) Obstruction of the right aperture of the fourth ventricle (foramen of Luschka)
C) Obstruction of the right interventricular foramen(foramen of Monro)
D) Perforated septum pellucidum
E) Subarachnoid hemorrhage on the right