A finding of a focus of increased echogenicity upon prenatal ultrasound examination of the fetus. The foci may be present in one or both ventricles. Echogenic intracardiac focus (EICF) is defined as a focus of echogenicity comparable to bone, in the region of the papillary muscle in either or both ventricles of the fetal heart.
Comment:
An echogenic intracardiac focus (EIF) is generally believed to be a normal variant, observed in 5% of all fetuses during second trimester sonography, but the risk of aneuploidies such as Down syndrome is increased in fetuses with EIF.