Sonographic markers of exencephaly below 10 weeks' gestation.
We report two cases of exencephaly diagnosed by transvaginal ultrasonography at 8 weeks 4 days and at 9 weeks 3 days of gestation. Both cases presented an irregular cephalic pole, and, in the case seen at 8 weeks 4 days, brain vesicles were also absent, whereas in the case seen at 9 weeks 3 days, the midline echo was indistinguishable with disorganized choroid plexuses. In both cases, anencephaly was evident at 11 and 12 weeks' gestation and the postmortem confirmed the diagnosis.
Machado
R A
RA
Fetal Medicine Unit, Department of Obstetrics, Hospital das Clínicas, São Paulo University Medical School, Brazil.
Brizot
M L
ML
Carvalho
M H B
MH
Waissman
A L
AL
Bunduki
V
V
Zugaib
M
M
D000025:Abortion, Eugenic; D000328:Adult; D000757:Anencephaly / Q000000981:diagnostic imaging*; D005260:Female; D005817:Genetic Counseling; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D016216:Ultrasonography, Prenatal