Skip to main content
Go to homepage

Print Page

A to Z: Primitive Neuroectodermal Tumor (PNET)

May also be called: Medulloblastoma; Posterior Fossa PNET; Supratentorial PNET; Pineoblastoma

Primitive neuroectodermal (PRIM-ih-tiv nur-oh-ek-tuh-DERM-ul) tumors, or PNETs, are tumors that can happen anywhere in the brain. These tumors can spread to the fluid that surrounds the brain and spinal cord.

More to Know

Primitive neuroectodermal tumors develop from immature nerve cells in the brain. These primitive cells are often cancerous, and can start to grow out of control.

Types of PNETs include:

Symptoms of a PNET often depend on the size of the tumor and where it is, but common symptoms include:

  • headaches, nausea, and vomiting (especially in the morning) caused by increased pressure in the head
  • weakness in the arms and legs
  • vision problems
  • seizures
  • trouble with balance and coordination

PNETs require aggressive treatment, including surgery, chemotherapy, and radiation therapy.

Keep in Mind

PNETs are serious tumors that need a lot of treatment. But recent medical advances have made a cure possible for many of the children who have them.

All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.

What next?

Summit Mall Play Area
Answer Key:
Click to expand
There are 10 nurses in the picture.

And we have many more pediatric primary care providers in Northeast Ohio. You can meet some of them here.
Summit Mall Play Area
Answer Key:
Click to expand
The five differences are:
– Phone color
– Coat pocket
– Stethoscope earpiece color
– Stethoscope bell dot
– Clipboard paper color

Need help finding a doctor, choosing a location or getting a general question about Akron Children's answered? Call us or fill out the form and we'll help in any way we can.
Summit Mall Play Area
Answer Key:
Click to expand
The two matching doctors are 9 and 14.

With virtual visits, you can see our pediatric experts from the comfort of home or wherever you are.
Summit Mall Play Area
Answer Key:
Click to expand
The correct path:
The Correct Path
We offer many ways to get pediatric care all over Northeast Ohio. Use this page to find the right kind of care and the most convenient location for you.