Neurology Quiz #17: Cerebral Ventricular System

1. A 6-month-old boy is brought to the pediatrician because of an increase in head size and irritability over the past month. Physical examination reveals a bulging fontanelle and dilated scalp veins. An MRI of the brain shows enlargement of all ventricles. Which of the following is the most likely diagnosis? 

Question 1 of 5

2. A 22-year-old woman presents to the emergency room after experiencing a sudden, severe headache followed by a brief loss of consciousness. A CT scan reveals a subarachnoid hemorrhage. Impairment of CSF flow at which of the following sites would be most likely responsible for subsequent hydrocephalus in this patient? 

Question 2 of 5

3. A 55-year-old man with a history of hypertension presents with difficulty walking, urinary incontinence, and cognitive decline over several months. MRI of the brain shows enlargement of the ventricles with no obstruction of CSF flow. Which of the following is the most likely cause of his condition? 

Question 3 of 5

4. A neonate is diagnosed with a congenital malformation leading to hydrocephalus. The malformation is characterized by a narrowing of the channel that connects the third and fourth ventricles. Which of the following is the most likely diagnosis? 

Question 4 of 5

5. A 30-year-old man presents with headaches, nausea, and blurred vision. A CT scan of the head reveals a mass near the cerebellum obstructing the flow of CSF from the fourth ventricle. Which of the following complications is most likely to develop if this condition is not treated? 

Question 5 of 5


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