Table 2. Revised Assessment in Neuro-Oncology criteria.

Criterion	T1 gadolinium-enhancing disease	T2/FLAIR	New lesion	Corticosteroids	Clinical status	Requirement for response
Complete response	None	Stable or improved	None	Off steroids or on physiological replacement doses only	Stable or improved	All
Partial response	≥50% decrease	Stable or improved	None	Stable or decreased	Stable or worse	All
Stable disease	<50% decrease or <25% increase	Stable or improved	None	Stable or decreased	Stable or worse	All
Progression	≥25% increase	Increased	Present	NA	Worse	Any

FLAIR: Fluid-attenuated inversion recovery; NA: Not available.

Data taken from [4].