These tumors generally occur in children. The symptoms of the PNET group of tumors are related to their size and location. Commonly, they cause increased pressure inside the head. This can result in headache, nausea and vomiting. Other symptoms result from pressure on the brain itself and can result in weakness, visual problems and loss of balance.
Seizures are common.
As always, the first steps in diagnosis area careful history and physical examination. CT or MRI scanning performed without and with intravenous contrast enhancement are the next step. Because of the possibility of spread through the spinal fluid, MRI of the entire spine is frequently performed. Treatment Surgery is the usual first treatment for these tumors. They are generally unable to be cured by surgery.