Controversy

Whether removing T2/FLAIR non-enhancing assessment from enhancing-tumor evaluation in RANO 2.0 improves or degrades detection of infiltrative/non-enhancing progression

Evidence grade: WEAK — Supported only by weak or preliminary evidence.

computed from the encoded evidence by the Atlas grading rule.

Position A

RANO 2.0 drops routine T2/FLAIR measurement to reduce noise and inter-reader variability; post-radiation scan as baseline reduces pseudoprogression misclassification

Position B

Non-enhancing infiltrative progression (esp. IDH-mutant, treated, anti-angiogenic) is clinically real; removing it risks under-calling true progression that enhancement misses

Clinical stakes

Directly changes trial endpoints and time-to-progression; affects when patients are switched off therapy

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About this page

Curated and maintained by Resonant Labs. Reviewed by Claims are synthesized from the cited literature and graded per the Atlas methodology (about the Atlas). Last updated 2026-07-01.

This is an educational research resource from Resonant Labs, not clinical advice. Evidence grades and controversies are summarized from the literature and may change as the field evolves.