acardius anceps

a·car·di·us an·'ceps

an acardiac fetus with partly developed head and deformed face, trunk, and limbs.
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References in periodicals archive ?
In Acardius Anceps twin, the most developed type, rudimentary cranial structures with otherwise persistent trunk, limbs and organs noted.
Skeletal deformities of acardius anceps. The gross and imaging features.