Grading (Tumors)

High Quality Content by WIKIPEDIA articles! In pathology, grading is a measure of the cell appearance in tumors and other neoplasms. Some pathology grading systems apply only to malignant neoplasms (cancer); others apply also to benign neoplasms. The neoplastic grading is a measure of cell anaplasia (lack of differentiation) in the sampled tumors arising from the hyperplasia of normal tissue. Grading in cancer is distinguished from staging (Cancer_staging) that is instead a measure of the extent the cancer has spread.