Description | Grade |
---|---|
Complete regression (absence of tumour signal and barely visible treatment related scar) | mrTRG 1 |
Good regression (predominant low signal intensity fibrosis with no obvious areas of intermediate signal intensity) | mrTRG 2 |
Moderate regression (low signal intensity fibrosis predominates but there are obvious areas of intermediate signal intensity) | mrTRG 3 |
Slight regression (little areas of low signal intensity fibrosis or mucin but mostly tumor) | mrTRG 4 |
No regression (intermediate signal intensity, same appearances as original tumor) | mrTRG 5 |