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Progression of exencephaly to anencephaly in the human fetus—an ultrasound perspective |
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| Authors: | Louise Wilkins-Haug Walter Freedman |
| Institution: | Denver General Hospital, 777 Bannock Street, Denver, CO 80204, U.S.A.
University of Colorado School of Medicine, Denver, Colorado, U.S.A. |
| Abstract: | Exencephaly as a precursor of anencephaly is well delineated in animal studies. In humans, a similar though unproven embryologic sequence is postulated. In the case reported, serial ultrasound studies allowed us to identify a 16-week human exencephalic fetus and observe the cephalic changes during its progression to a classic anencephalic appearance. |
| Keywords: | Exencephaly Anencephaly Ultrasound diagnosis |