Obstetrics - (mostly) morphology
Ultrasound
What is the characteristic sign, seen in cranium axial images?
Show Answer
Lemon sign
What should be the likely diagnosis?
Chiari type 2 malformation.
18 week fetus with lemon shaped skull, hydrocephalus and focal kyphosis at lumbar level with a cystic lesion in the lumbar region suggesting an open neural tube defect