CONDITIONS WE TREAT: High-grade Tumors

A High-grade tumor is a tumor that shows a high degree of anaplasia, or lack of differentiation between cells. High-Grade tumors reproduce quickly and can spread much faster than lower grade tumors, and require different approaches in terms of treatment.

Grading systems are different for each type of cancer. The grade score (numerical: G1 up to G4) increases with the lack of cellular differentiation - it reflects how much the tumor cells differ from the cells of the normal tissue they have originated from (see 'Categories' below). Tumors may be graded on four-tier, three-tier, or two-tier scales, depending on the institution and the tumor type.