• neural-tube d
  • Anencephaly (without brain) is a neural tube defect that occurs when the head end of the neural tube fails to close, usually during the 23rd and 26th days of pregnancy, resulting in an absence of a major portion of the brain and skull. (wikipedia.org)
  • Studies show that a woman who has had one child with a neural tube defect such as anencephaly has about a 3% risk of having another child with a neural tube defect, as opposed to the background rate of 0.1% occurrence in the population at large. (wikipedia.org)
  • cleft
  • The anomalies typically looked for in an anomaly scan include: Anencephaly Open spina bifida Cleft lip Diaphragmatic hernia gastrochisis Omphalocele Congenital heart defect bilateral renal agenesis Osteochondrodysplasia Edwards syndrome Patau syndrome Whilst sex can technically be determined earlier, sex determination at this scan is generally reliable, and so this is commonly when parents can learn the sex of their baby. (wikipedia.org)
  • include
  • In children with spina bifida, in addition to routine laboratory screening examination, testing would include levels of anticonvulsants, urine cultures, and perhaps cystometrograms and skin testing for latex sensitivity. (medscape.com)
  • form
  • The most frequently seen form of spina bifida occulta is when parts of the bones of the spine, called the spinous process, and the neural arch appear abnormal on a radiogram, without involvement of the spinal cord and spinal nerves. (wikipedia.org)
  • Meronanencephaly is a rare form of anencephaly characterized by malformed cranial bones, a median cranial defect, and a cranial protrusion called area cerebrovasculosa. (wikipedia.org)
  • brain
  • Anencephaly is the absence of a major portion of the brain, skull, and scalp that occurs during embryonic development. (wikipedia.org)
  • Although some individuals with anencephaly may be born with a main brain stem, the lack of a functioning cerebrum permanently rules out the possibility of ever gaining awareness of their surroundings. (wikipedia.org)