Tumor staging completed based on pathological findings

The extent of a tumor's spread has been determined using laboratory analysis of tissue samples.

Used to document that the tumor stage has been assigned following pathological examination, often including microscopic review of biopsied or resected tissue.

This phrase signifies definitive staging, typically following surgery or biopsy, and should not be used when clinical staging (based on imaging or physical exam) is being described. It should be followed by the assigned stage.