Sep

22

2023

Classification of Macrocytosis

By William Aird

Supporting data

Reference for progression of unexplained macrocytosis progressing to primary bone marrow disorder (11.6% of cases) can be found in PMID 23380746.

Supporting data for prevalence of non-anemic macrocytosis and unexplained macrocytosis:

PMIDPatientsNo anemia*Unexplained**
14188889n=120 with MCV > 10047.5%27%
4711772n=100 with MCV > 114 fL40%11%
649776n=22 with MCV > 99 fL60%22.5%
7234509n=70 with MCV > 104 fLNM9%
2708016n-83 with MCV > 9950%34%
2341917n=128 with MCV > 98.5 fL22%11%
8422018n=100 with MCV > 109 fLNM5%
8747507n=287 with MCV > 99 fL80%21%
10875288n=300 with MCV > 99 fL26.3%7%
27352093n=782 with MCV > 99 fL19.7%7.9%

*tended to have less lower MCV

**tended to have less anemia