European Consensus on Grading of Bone Marrow Fibrosis

**Semantic type:** Classification

**Definition:** A grading scheme that includes both a qualitative (reticulin or collagen) and quantitative evaluation of bone marrow fibrosis comprising four increasing categories.

**Synonyms:** - Grading for Marrow Fibrosis - Marrow Fibrosis Grading System - Updated WHO Fibrosis Classification