ON THIS PAGE: You will find information about how many people learn they have this type of tumor each year and some general survival information. Remember, survival rates depend on several factors. To see other pages, use the menu on the side of your screen.
PPB occurs most often in children younger than four. Most kids are diagnosed between the ages of 3 to 4, but some are diagnosed between ages four to eight. PPB is rarely diagnosed in older children, teenagers, and adults. PPB occurs about equally in boys and girls.