Joubert syndrome

Case contributed by Ammar Haouimi
Diagnosis almost certain

Presentation

Developmental delay and hypotonia.

Patient Data

Age: 5 years
Gender: Male
mri

Hypoplasia of the cerebellar vermis with prominent thickened elongated superior cerebellar peduncles gives the midbrain a characteristic molar-tooth sign appearance with a bat-wing configuration of the fourth ventricle.

Case Discussion

The MRI findings are characteristic of Joubert syndrome.

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