: MeSH: Chimerism

Pathological Conditions, Signs and Symptoms > Pathologic Processes > Chromosome Aberrations > Chimerism

Genetic Phenomena > Genetic Variation > Mutation > Chromosome Aberrations > Chimerism

Chimerism

The occurrence in an individual of two or more cell populations of different chromosomal constitutions, derived from different individuals. This contrasts with MOSAICISM in which the different cell populations are derived from a single individual. A low number of circulating cells transferred from one individual to another. This often refers to fetal cells persisting in the material circulation and may play a role in the pathogenesis of AUTOIMMUNE DISEASES.

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