Holoacardius amorphus. Report of a case with chromosome analysis.

Abstract

Abstract Forty-six normal chromosomes were found in mitoses of cells in a tissue culture obtained from an acardiac monster. This finding is interpreted as supporting the concept that this anomaly is secondary to chance vascular communications in the placenta. The XY sex chromosomes correspond to the sex of the associated normal twin and support previous findings of isosexual relations of such twins.