Radiology Quiz 43270 | Radiopaedia.orgViewing playlist: Obstetric viva 4

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Ultrasound

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Coronal

Question 1

What size of cisterna magna (retrocerebellar CSF space) should raise concern?

Show Answer

10 mm

Increased size of enlarged cisterna magna (CSF retrocerebellar space), due to complete vermian aplasia. There is also orbital hypertelorism. No other significant finding was detected.