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the grade of a cancer tells how abnormal its cells (or patterns of cells) look under the microscope. There are different grading systems for different types of cancers. Grading is done by a pathologist who looks at sample tissue from the biopsy. Cancers with higher grades (more abnormal-looking cells or patterns) tend to grow and spread more quickly and have a worse prognosis (outlook). See also biopsy, pathologist, staging.

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... Your Local Offices. Close. + -Text Size. Understanding Your Pathology
Report: High-Grade Prostatic Intraepithelial Neoplasia. ...


What is salivary gland cancer?

... Doctors usually give salivary cancers a grade (from 1 to 3, or from low to high),
based on how abnormal the cancers look under a microscope. ...


How is osteosarcoma staged? | American Cancer Society

... Grades of bone cancer. Note: The grades used for the AJCC system are different
from those in the MSTS system. ... GX: Grade can't be assessed. ...


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... Since prostate cancers often have areas with different grades, a grade is
assigned to the 2 areas that make up most of the cancer. ...


How are soft tissue sarcomas staged?

... tissue. He or she determines the cell type and grade and estimates how
rapidly it will grow and spread. ... microscope. Grade (G). ...


How is cancer of the esophagus staged?

... It has not started growing into the deeper layers. This stage is also known as
high-grade dysplasia. In the past it was called carcinoma in situ. ... Grade. ...


How is prostate cancer diagnosed?

... Grading prostate cancer. ... patterns look very abnormal, it is called a grade 5
tumor. Grades 2 through 4 have features in between these extremes. ...


What is osteosarcoma? | American Cancer Society

... Based on how they look under the microscope, osteosarcomas can be
classified as high grade, intermediate grade, or low grade. ...


How are Ewing tumors staged?

... M1b: The cancer has spread to other distant sites in the body. Grades of bone
cancer. GX: Grade can't be assessed. G1-G2: Low grade. ...


How is bone cancer staged?

... Grades of bone cancer. G1-G2: Low grade. G3-G4: High grade. TNM
stage grouping. After the T, N, and M stages and the ...