The assessment of the grade of differentiation of a Tumour expressed as the extent to which the Tumour resembles the normal TISSUE at that site.
National Codes:
| GX | Grade of differentiation is not appropriate or cannot be assessed | 
| G1 | Well differentiated | 
| G2 | Moderately differentiated | 
| G3 | Poorly differentiated | 
| G4 | Undifferentiated / anaplastic | 
This attribute is also known by these names:
| Context | Alias | 
|---|---|
| plural | GRADES OF DIFFERENTIATION |