👉 Micronuclei are small, unidentifiable cells that appear in a tissue sample or blood cell analysis. These cells contain DNA but do not have any other components of the cell nucleus, such as chromosomes or nucleoli. They can be found in various tissues and organs throughout the body, including bone marrow, spleen, liver, and brain. The presence of micronuclei is often associated with cancerous conditions like leukemia and lymphoma.