منابع مشابه
First-trimester echogenic amniotic fluid in the acrania-anencephaly sequence.
OBJECTIVE To describe the association between echogenic amniotic fluid and first-trimester fetal acrania. METHODS Nine fetuses with acrania were examined between 11 weeks' and 13 weeks 6 days' menstrual age for the presence of echogenic free-floating particles in the amniotic fluid. Cases were classified into 3 types according to the echogenicity of the amniotic fluid: similar to (type 0), sl...
متن کاملAnencephaly.
Anencephaly is an open neural tube [5] defect, meaning that part of the neural tube [5] does not properly close or that it has reopened during early embryogenesis [6]. An embryo with anencephaly develops without the top of the skull, but retains a partial skull, including the face. Anencephaly is one of the most common birth defects [7] of the neural tube [5], occurring at a rate of approximate...
متن کاملAmnion rupture sequence with 'exencephaly': MR findings in a surviving infant.
The amnion rupture sequence is a heterogeneous group of congenital deformities in which rupture of the amnion occurs early in gestation. Fragments of the amnion may adhere to, or encircle and constrict, embryonic parts. This may interrupt normal morphogenesis and cause deformity or even mutilation of formed structures; large cranial defects are a common feature. In contrast to other causes of c...
متن کاملEndocrine studies in anencephaly.
Endocrine function has been investigated in four anencephalic neonates to determine the influence of absence of cortical and hypothalamic tissue and of hypoplasia of the pituitary. Intravenous glucose administration resulted in higher peak values for blood sugar and more rapid glucose disposal rates than reported in normals. Intravenous insulin tolerance tests on two of the infants failed to ev...
متن کاملRachischisis and Anencephaly
SUMMARY Antenatal ultrasonography has an important rule in diagnosis of congenital malformation. At present identification of most major congenital abnormality during pregnancy depends on . sensitivity and resolution of the instrument, skilful and experienced sonologist and gestational age. Cranial and spinal defects and other malformations can be ferquently diagnosed with ultrasound. Major a...
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ژورنال
عنوان ژورنال: American Journal of Obstetrics and Gynecology
سال: 2020
ISSN: 0002-9378
DOI: 10.1016/j.ajog.2020.08.176