t(16;21)(q24;q22)

**Semantic type:** Cell or Molecular Dysfunction

**Definition:** A cytogenetic abnormality that refers to the translocation of the long arm (q24) of chromosome 16 and the long arm (q22) of chromosome 22. It is associated with RUNX1/CBFA2T3 fusions, myelodysplastic syndromes and acute myeloid leukemia.