Hydrocephalus Support Group
Human papillomavirus is a diverse group of DNA-based viruses that infect the skin and mucous membranes of humans. More than 100 different human papillomavirus (HPV) types have been characterized. Some HPV types cause benign skin warts, or papillomas, for which the virus family is named. HPVs associated with the development of such "common warts" are transmitt+B224:E226ed...
My neurosurgeon told me that, had I been born a few years later they wouldn't have made a shunt but they would have made a hole through the ventricle or at the back of the CSF space so maybe in your case they also could have solved the problem in another way.
Did they tell you anything about other possibilities?