The cancer can also spread into nearby lymph nodes close to the bladder. This is sometimes known as nodal involvement. Grading of bladder cancer Grading refers to the appearance of the cancer cells under the microscope. The grade gives an idea of how quickly the cancer may develop. The other system uses four grades.
Low grade means that the cancer cells look very like normal bladder cells.
They are usually slowly growing and less likely to spread. In high grade tumours the cells look very abnormal. They are likely to grow more quickly and are more likely to spread. All rights reserved.