Related Experiment Video
Updated: Apr 18, 2026

05:10
Intracranial Orthotopic Allografting of Medulloblastoma Cells in Immunocompromised Mice
Published on: October 3, 2010
12.7K
Primary intracranial peripheral PNET"--a case report and review
Kiranchand Velivela, Alugolu Rajesh1, Megha Shantveer Uppin
1Department of Neurosurgery, Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad, Telangana, India.
Neurology India
|January 17, 2015
Summary
Primitive neuroectodermal tumors (PNETs) can originate in various locations, impacting patient outcomes. Intracranial peripheral PNET/Ewing's sarcoma, a rare PNET, shows a better prognosis than central nervous system PNET.
Area of Science:
- Neuro-oncology
- Pediatric oncology
- Surgical pathology
Background:
- Primitive neuroectodermal tumors (PNETs) are a diverse group of neoplasms with varying origins and prognoses.
- The distinction between central nervous system PNET (CNS PNET) and intracranial peripheral PNET (pPNET/ES) is critical due to differing treatment strategies and outcomes.
Observation:
- This report details a rare case of an intracranial peripheral PNET/Ewing's sarcoma in a 13-year-old girl, originating from the superior tentorial surface.
- The tumor was completely removed surgically.
- This case highlights the importance of precise tumor localization for accurate diagnosis and management.
Findings:
- Intracranial peripheral PNET/Ewing's sarcoma demonstrates a more favorable prognosis compared to CNS PNET.
- Accurate differentiation between CNS PNET and pPNET/ES is essential for effective therapeutic planning.
Implications:
- Early and accurate diagnosis of intracranial pPNET/ES can lead to improved patient outcomes.
- Further research into the specific characteristics and treatment of peripheral PNETs in the central nervous system is warranted.
- This case contributes to the understanding of rare neuroectodermal tumors and their management.

