Association Between B-Cell Marker Expression and RUNX1 Lesions in Acute Myeloid Leukemia, Beyond RUNX1::RUNX1T1 Fusion: Diagnostic Pitfalls with Mixed-Phenotype Acute Leukemia—B/Myeloid

Abstract excerpt

Acute myeloid leukemia (AML) with RUNX1::RUNX1T1 fusion is well known to often demonstrate aberrant upregulation of CD19 expression. We studied the clinicopathologic and genetic features of 16 cases of AML with various RUNX1 lesions, including mutations, copy number gains, and translocations other than fusions with RUNX1T1. Most of these cases were classified as AML-myelodysplasia-related or AML-post-cytotoxic...

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