Lead Sponsor: University of Colorado, Denver

Intervention / Treatment: DRUG: Sodium Fluorescein, DEVICE: Microscopic Resection

Lead Sponsor: University of Utah

Collaborators: National Institutes of Health (NIH), Children's Hospital Los Angeles, National Institute of Neurological Disorders and Stroke (NINDS), University of Alabama at Birmingham, University of Pittsburgh, University of Colorado, Denver, Penn State University, Vanderbilt University Medical Center, Washington University School of Medicine, University of British Columbia, University of Florida, Johns Hopkins University, The Hospital for Sick Children, Baylor College of Medicine, Seattle Children's Hospital, Nationwide Children's Hospital, Virginia Commonwealth University, University of Calgary, Hydrocephalus Association, Orlando Health, Inc., Trustees of Indiana University

Intervention / Treatment: PROCEDURE: Endoscopic Third Ventriculostomy with Choroid Plexus Cauterization (ETV+CPC), DEVICE: Ventriculoperitoneal Shunt

Lead Sponsor: University of Colorado, Denver

Intervention / Treatment: PROCEDURE: Tumor and Blood Specimens