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Obstetric ultrasonography, or prenatal ultrasound, is the use of medical ultrasonography in pregnancy, in which sound waves are used to create real-time visual images of the developing embryo or fetus in the uterus (womb).
Choroid plexus cysts ( CPCs) are cysts that occur within choroid plexus of the brain. They are the most common type of intraventricular cyst, [ 1] occurring in 1% of all pregnancies. [ 2] It is believed that many adults have one or more tiny CPCs. [ 3] The fetal brain may create these cysts as a normal part of development.
Acrania is a rare congenital disorder that occurs in the human fetus in which the flat bones in the cranial vault are either completely or partially absent. [1] The cerebral hemispheres develop completely but abnormally. [1] The condition is frequently, though not always, associated with anencephaly. The fetus is said to have acrania if it ...
In prenatal development of the fetus, the laminae of the septum pellucidum separate to form a small cavity – the cave of septum pellucidum. This is an important normal structure to identify in the sonographic assessment of the fetal brain. In post-natal life, the laminae of the septum pellucidum usually fuse, which obliterates the cavum.
A nuchal cord is when the umbilical cord becomes wrapped around the fetus 's neck. [ 1] Symptoms present in the baby shortly after birth from a prior nuchal cord may include duskiness of face, facial petechia, and bleeding in the whites of the eye. [ 1] Complications can include meconium, respiratory distress, anemia, and stillbirth. [ 1]
Description. Fetal head with lemon and banana sign Ecografia Dr. Wolfgang Moroder.theora.ogv. English: Ultrasound image of the fetal head at 21 weeks of pregnancy in a fetus affected by spina bifida. In the axial scan the characteristic lemon sign, ventriculomegaly and banana sign are seen. Deutsch: Ultraschall des Schädels eines 21 Wochen ...
Fetus in fetu (or foetus in foetu) is a rare developmental abnormality in which a mass of tissue resembling a fetus forms inside the body of its twin. An early example of the phenomenon was described in 1808 by George William Young. [ 1] There are two hypotheses for the origin of a "fetus in fetu". One hypothesis is that the mass begins as a ...
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