The Radiopaedia Reading Room Podcast 48. Readful! Glioblastoma with Frank Gaillard
May 27, 2024
Expert radiologist Frank Gaillard discusses the evolving definitions and classifications of IDH-wildtype glioblastomas, highlighting the importance of molecular parameters in diagnosis. The podcast explores the challenges in imaging differentiation, advancements in MRI techniques for treatment monitoring, and post-operative follow-up protocols. Banter about supporting Radiopaedia and humorous lunch/dinner discussions add a light touch to the informative episode.
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IDH Mutation Effects
- IDH mutations in gliomas cause a gain of function, producing 2HG.
- 2HG mimics glutamate, increasing seizure risk, and it's cytotoxic, slowing growth.
IDH Mutation and Age
- Consider IDH mutation status in glioma diagnosis.
- In younger patients, gliomas are more likely IDH mutant, while older patients are typically IDH wild-type.
Molecular Glioblastoma
- Be cautious when diagnosing low-grade gliomas in older patients.
- They are often IDH wild-type, which are molecular glioblastomas, despite appearances.