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Glial Cells

Glial Cells

Nervous Tissue: Glial Cells

Nervous Tissue: Glial Cells

Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial...

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Pediatric Glial Tumors.

Angela N Viaene^1,2, Mariarita Santi^1,2, Cynthia Hawkins^3,4,5

¹Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.

Pediatric and Developmental Pathology : the Official Journal of the Society for Pediatric Pathology and the Paediatric Pathology Society

|April 19, 2021

Summary

Pediatric glial tumors require distinct diagnostic approaches due to unique molecular profiles. This guide aids in diagnosing pediatric gliomas, integrating molecular data for better prognosis and treatment.

Keywords:

glioma immunohistochemistry molecular pathology neuropathology pediatric surg path tumors

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Area of Science:

Neuro-oncology
Pediatric Pathology
Molecular Diagnostics

Background:

Pediatric glial tumors differ significantly from adult types, necessitating specific diagnostic criteria.
The World Health Organization classification integrates molecular profiles for both high- and low-grade pediatric gliomas.
Molecular alterations, such as H3 K27M mutations, are crucial for prognosis in pediatric high-grade gliomas.

Purpose of the Study:

To provide a practical diagnostic framework for pediatric gliomas.
To guide the selection of appropriate molecular tests, including immunohistochemistry and genetic studies.
To facilitate timely and accurate diagnoses for informed clinical decision-making.

Main Methods:

Review of current literature and classification systems for pediatric glial tumors.
Emphasis on integrating histopathological findings with molecular data.
Guidance on utilizing immunohistochemical stains and molecular studies for diagnosis.

Main Results:

Molecular profiling is essential for accurate classification and prognostication of pediatric gliomas.
Specific molecular alterations correlate with distinct tumor behavior and treatment responses.
A systematic approach combining morphology and molecular analysis improves diagnostic accuracy.

Conclusions:

Accurate diagnosis of pediatric gliomas relies on a comprehensive approach incorporating molecular insights.
This practical guide assists clinicians in navigating the complexities of pediatric glioma diagnosis.
Integrating molecular diagnostics is key to optimizing patient prognosis and therapeutic strategies.