Placenta | Amniotic band syndrome (ABS)

Placenta | Amniotic band syndrome (ABS) Amniotic bands are caused by damage to one of the membrane layers of the placenta called the amnion. Damage to the amnion may produce fibre-like bands, which can trap or constrict parts of the developing baby. They can cause a...

Head & Neck | Fetal neck masses

Head & Neck | Fetal neck masses Abnormalities of the fetal neck are uncommon and may be serious. The most important abnormalities are cystic hygromas, neck neural tube defects (occipital encephalocele, cervical meningomyelocele) and neck tumors (cervical teratomas)....