Grade | Description |
---|---|
Grade I | More than 75% of cancer cells are well-differentiated, classified as highly differentiated cancer, low malignancy |
Grade II | 25% to 75% of cancer cells are well-differentiated, classified as moderately differentiated cancer, moderate malignancy |
Grade III | Less than 25% of cancer cells are well-differentiated, classified as poorly differentiated cancer, high malignancy |
Grade IV | Undifferentiated cancer |