Any acute myeloid leukemia that has the chromosomal anomaly inv(3)(q21.3;q26.2). (A cytogenetic abnormality that refers to a paracentric inversion involving breakpoints on the long (q23.1 and q26.2) of chromosome 3. It is associated with acute myeloid leukemia.). The disease is MONDO_0100398 (acute myeloid leukemia, inv(3)(q21.3;q26.2)). Also known as: AML, inv(3)(q21.3;q26.2), AML, inv(3)(q21.3q26.2), AML, inv(3)(q21q26.2).