International Society of Urological Pathology Gleason Grade Group

**Semantic type:** Classification

**Definition:** A grading system for prostatic adenocarcinoma based on modified Gleason cellular differentiation patterns and Gleason primary and secondary scores (Epstein JI, Egevad L, Amin MB, Delahunt B, Srigley JR, Humphrey PA; Grading Committee. The 2014 International Society of Urological Pathology (ISUP) Consensus Conference on Gleason Grading of Prostatic Carcinoma: Definition of Grading Patterns and Proposal for a New Grading System. Am J Surg Pathol. 2016 Feb;40(2):244-52.)

**Synonyms:** - Epstein ISUP Grade Group - ISUP - ISUP GLEASON GRADE GROUP - gleason grade group - gleason_grade_group