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Updated: Jun 22, 2025
A Protocol for Rapid Post-mortem Cell Culture of Diffuse Intrinsic Pontine Glioma DIPG
Published on: March 7, 2017
Pediatric-type diffuse low-grade gliomas
Asthik Biswas1, Harini R Rao2, Matthias W Wagner3,4
1Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK. asthikbiswas@gmail.com.
Insights
Pediatric-type diffuse low-grade gliomas (pDLGGs) differ from adult gliomas in key molecular and clinical aspects. Molecular analysis is vital for distinguishing these four pDLGG subtypes due to overlapping features.
Area of Science:
- Neuro-oncology
- Pediatric Pathology
- Molecular Diagnostics
Background:
- The World Health Organization (WHO) CNS tumor classification distinguishes adult and pediatric gliomas.
- Pediatric-type diffuse low-grade gliomas (pDLGGs) present unique molecular profiles, behaviors, and prognoses compared to adult gliomas.
- Accurate diagnosis of pDLGGs is critical for effective treatment strategies.
Purpose of the Study:
- To highlight the distinct nature of pediatric-type diffuse low-grade gliomas (pDLGGs).
- To emphasize the importance of molecular alterations in pDLGGs for diagnosis and treatment.
- To underscore the necessity of molecular analysis for differentiating the four pDLGG entities.
Main Methods:
- Review of the 5th edition WHO CNS tumor classification.
- Analysis of molecular characteristics differentiating pDLGGs from adult gliomas.
- Comparison of histopathological and imaging features across pDLGG subtypes.
Main Results:
- pDLGGs are recognized as a distinct group from adult gliomas.
- Specific molecular alterations are key identifiers and therapeutic targets in pDLGGs.
- Four distinct pDLGG entities exist, sharing diffuse growth and overlapping diagnostic characteristics.
Conclusions:
- Molecular profiling is indispensable for accurate classification of pDLGGs.
- Understanding pDLGG molecular landscape is crucial for personalized treatment and improved outcomes.
- Differentiating pDLGG subtypes requires integrated histopathological, imaging, and molecular data.
Abstract:
The World Health Organization's 5th edition classification of Central Nervous System (CNS) tumors differentiates diffuse gliomas into adult and pediatric variants. Pediatric-type diffuse low-grade gliomas (pDLGGs) are distinct from adult gliomas in their molecular characteristics, biological behavior, clinical progression, and prognosis. Various molecular alterations identified in pDLGGs are crucial for treatment. There are four distinct entities of pDLGGs. All four of these tumor subtypes exhibit diffuse growth and share overlapping histopathological and imaging characteristics. Molecular analysis is essential for differentiating these lesions.
