Hydrocephalus in patients with cancer can occur due to several reasons. One of the primary causes is the presence of brain tumors that obstruct the normal flow of CSF. Tumors, either primary or metastatic, can block the pathways through which CSF circulates, leading to its accumulation. Additionally, cancer treatments such as radiation therapy can cause swelling and scarring, further impeding CSF flow. Leptomeningeal carcinomatosis, a condition where cancer cells spread to the membranes surrounding the brain and spinal cord, can also lead to hydrocephalus. Understanding these causes is crucial for effective management.
