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MBBS QUESTION #10167
Question 1
A patient develops communicating (non-obstructive) hydrocephalus following subarachnoid hemorrhage. This most often results from impaired CSF reabsorption at which site?
  • Arachnoid granulations✔️
  • Foramen of Luschka
  • Cerebral aqueduct
  • Foramen of Monro
Correct Answer Explanation
Blood products from subarachnoid hemorrhage can obstruct or fibrose the arachnoid granulations, impairing CSF reabsorption into the venous sinuses and producing communicating hydrocephalus, in contrast to obstructive hydrocephalus caused by blockage within the ventricular system itself.