Stages and grades
The stage of a neuroendocrine tumour (NET) tells you about its size and whether it has spread. The grade means how abnormal the cells look under a microscope.
The tests and scans you have to diagnose a large bowel or rectal NET give information about the stage and grade. This helps your doctor decide which treatment you need.
Stages
The stage tells you the size of a large bowel or rectal NET and whether it has spread.
Grades and the Ki-67 index
The grade and the Ki-67 index gives your doctor an idea of how the NET might behave and whether it is likely to spread.
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