fetus /fe·tus/ (fēt´us) [L.] the developing young in the uterus, specifically the unborn offspring in the postembryonic period, in humans from nine weeks after fertilization until birth.
harlequin fetus,
harlequin fetus an infant with a severe and usually lethal form of congenital ichthyosis, manifested by hyperkeratosis with rigid skin.
mummified fetus a dried-up and shriveled fetus.
fetus papyra´ceus a dead fetus pressed flat by the growth of a living twin.
parasitic fetus in asymmetrical conjoined twins, an incomplete minor fetus attached to a larger, more completely developed twin.
har·le·quin fetus (här l -kwn, -kn)n. A newborn, usually premature collodian baby whose symptoms are severe. |
harlequin fetus,
an infant whose skin at birth is completely covered with thick, horny scales that resemble armor and are divided by deep red fissures. The condition is the most severe form of lamellar exfoliation of the newborn, and the infant is stillborn or dies within a few days of birth.
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