Table 1 Grading criteria for bone marrow fibrosis [29]
Grading | Description |
|---|---|
0 | Scattered linear reticulin with no intersections corresponding to normal bone marrow |
1 | Loose network of reticulin with many intersections, especially in perivascular areas |
2 | Diffuse and dense increase in reticulin with extensive intersections, occasionally with only focal bundles of collagen and/or focal osteosclerosis |
3 | Diffuse and dense increase in reticulin with extensive intersections with coarse bundles of collagen, often associated with significant osteosclerosis |