Dragonfly sign

Last revised by Ammar Ashraf on 22 Mar 2023

Dragonfly sign describes the appearance of the cerebellum on coronal images, which is seen secondary to cerebellar atrophy in pontocerebellar hypoplasia 1.

The sign is so called as the whole cerebellum resembles the shape of a dragonfly if one imagines the vermis is the body of the insect and the cerebellar hemispheres are the wings 2.

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Cases and figures

  • Case 1: pontocerebellar hypoplasia
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