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Difference between revisions of "Colorectal adenocarcinoma"
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→Grading
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===Grading=== | ===Grading=== | ||
8th edition of AJCC - based on component composed of glands: | |||
*Grade 1: >95% of tumour = ''well-differentiated''. | |||
*Grade 2: >=50-95% of tumour = ''moderately differentiated''. | |||
*Grade 3: <50% of tumour = ''poorly-differentiated''. | |||
*Grade 4: 0% glandular, no mucin, no squamous differentiation = ''undifferentiated''. | |||
====Old system==== | |||
Based on component composed of glands: | Based on component composed of glands: | ||
*>=50% of tumour = low-grade (''well-differentiated'' and ''moderately differentiated''). | *>=50% of tumour = low-grade (''well-differentiated'' and ''moderately differentiated''). | ||