The flow cytometric diagnosis of AML: Difference between revisions
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[[Image:AML M1.png|130px]] Blast cells typically have "primitive" morphology and also express markers of early differentiation | [[Image:AML M1.png|130px]] Blast cells typically have "primitive" morphology and also express markers of early differentiation | ||
*Most often in AML useful features of immature cells are ''weak expression of CD45'', and expression of ''CD34'' and/or ''CD117''. However, a wider panel may be useful (for more detail see table) | *Most often in AML useful features of immature cells are ''weak expression of CD45'', and expression of ''CD34'' and/or ''CD117''. However, a wider panel may be useful (for more detail see [[table|Markers used to demonstrate primitive nature in AML]]) | ||
*In some cases there may be atypical features where primitive nature is less clear, this generally concerns some monocytic cases or APL (see table for details) | *In some cases there may be atypical features where primitive nature is less clear, this generally concerns some monocytic cases or APL (see table for details) | ||
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Revision as of 17:23, 1 December 2023
1. Do the cells have flow cytometric features that support their primitive nature?
Blast cells typically have "primitive" morphology and also express markers of early differentiation
- Most often in AML useful features of immature cells are weak expression of CD45, and expression of CD34 and/or CD117. However, a wider panel may be useful (for more detail see Markers used to demonstrate primitive nature in AML)
- In some cases there may be atypical features where primitive nature is less clear, this generally concerns some monocytic cases or APL (see table for details)
Can we confirm myeloid nature?
- Typical cases can generally be recognised by (see table for details)
- Atypical cases can still be identified based on a minimal feature set (see table for details)
- In unusual cases an extended marker panel may allow lineage assignment (see Table for details)
Are there atypical features?
- Expected abberency
- Feature that may give concern