This was a 29 year old lady ; G3 P1 A1 ( MTP by choice) , referred for anomaly scan at 20 weeks. Earlier scan done at 15 weeks did not reveal any abnormality.But scan done  2 days ago at a different centre has revealed abnormal shape of head.

The following was the picture of the head showing the ” lemon sign”of the skull  and the” banana sign “of the cerebellum.

lemon shaped skull ; BPD was smaller ; Mild hydrocephalus seen

cerebellum shows abnormal banana shape

careful examination of the fetal spine revealed the following

lumbar open neural tube defect seen

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