Items tagged “fetal mri”

Radiological evaluation of the posterior fossa is an essential part of the routine fetal assessment, including vermian maturity assessment. Radiographic features Ultrasonography is a readily available diagnostic tool in the assessment of the fetal posterior fossa but is sometimes limited due t...

The tilted telephone receiver sign (TTRS) has been described as a specific imaging feature of PHACES syndrome in fetal MRI 1 On the coronal plane, the TTRS sign is described as: upward displaced unilateral hypoplastic cerebellar hemisphere; asymmetric dilated 4th ventricle connected to as ips...

The tail sign has been described as being specific to Dandy-Walker malformation in fetal MRI.1 It is described as a linear T2 hypointensity in the inferior part of the vermis. Histologically, it corresponds to a thickness of the fourth ventricle roof that appears raised and dysplastic.1 The sp...