Fetal ultrasonography of Chiari II malformation
DOI:
https://doi.org/10.18203/2320-6012.ijrms20240239Keywords:
Neural tube defect, Spina bifida, Lemon sign, Banana sign, Chiari malformation, Obstetric ultrasonographyAbstract
Chiari II malformation is a complex hindbrain malformation, embryologically presenting as a neural tube closure defect comprising of downward herniation of cerebellum, pons, medulla and fourth ventricle into the spinal canal. We present a case of Chiari II malformation depicting essential sonographic observations at 20 weeks of gestation. Such fetuses have high morbidity and mortality and early diagnosis of such a disease is essential in terms of planning including pregnancy termination or neurosurgical procedures for follow-up pregnancy. Ultrasonography is an indispensable modality for the evaluation of fetal anatomy, growth, and such congenital anomalies.
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