microchimerism

mi·cro·chim·er·ism

(mī'krō-kim'ĕr-izm), 1. The presence of donor cells in a graft recipient. 2. The presence of fetal cells in maternal circulation or of maternal cells in offspring.

microchimerism

A genetic hybrid caused by migration of cells from an allograft into recipient tissue.

mi·cro·chim·er·ism

(mī'krō-kim'ĕr-izm) The presence of donor cells in a graft recipient, or of fetal cells remaining in maternal circulation, which can be detected by molecular methods but not by flow cytometry.

microchimerism

(mī″krō-kī-mĭr′ĭ-zĭm, kī′mĭ-rĭz″ĭm) [″ + ″] The presence in a tissue of some cells of alien origin, e.g., of fetal cells in a pregnant woman's bloodstream.