Installing a standard ball trailer hitch on a tow vehicle can cost $200-$500 or more. A spare tire typically costs $20-$200 or more, depending on size and type, a bolt-on spare tire carrier adds $15-$100 or more.
Hydrocephalus is the buildup of fluid in the cavities (ventricles) deep within the brain. The excess fluid increases the size of the ventricles and puts pressure on the brain. Cerebrospinal fluid normally flows through the ventricles and bathes the brain and spinal column.
Hydrocephalus has many different causes. Some people are born with the condition, while others develop it during their lives. Normal pressure hydrocephalus (NPH) is a type of hydrocephalus that usually occurs in older adults. The average age of person with NPH is over age 60. NPH is different than other types of hydrocephalus in that it develops slowly over time. The drainage of CSF is blocked gradually, and the excess fluid builds up slowly.