Joubert Plus syndrome in a child with Dandy-Walker malformation and occipital cephalocele: A case report

Joubert syndrome is a rare congenital cerebral developmental malformation that primarily affects the cerebellum. It is characterized by the absence or underdevelopment of the cerebellar vermis and a malformed brain stem (molar tooth sign) on a transverse view of the head magnetic resonance imaging s...

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Main Authors: Tsega Hagos Mehari, MD, Bemnet Mengesha Tessema, MD, Redaie Girmay Gebrekidan, MD
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Radiology Case Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S1930043325005345
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author Tsega Hagos Mehari, MD
Bemnet Mengesha Tessema, MD
Redaie Girmay Gebrekidan, MD
author_facet Tsega Hagos Mehari, MD
Bemnet Mengesha Tessema, MD
Redaie Girmay Gebrekidan, MD
author_sort Tsega Hagos Mehari, MD
collection DOAJ
description Joubert syndrome is a rare congenital cerebral developmental malformation that primarily affects the cerebellum. It is characterized by the absence or underdevelopment of the cerebellar vermis and a malformed brain stem (molar tooth sign) on a transverse view of the head magnetic resonance imaging scan. Major clinical features of Joubert syndrome are typically present in early infancy, with most children showing delays in gross motor milestones. When associated with other posterior fossa congenital malformations, it is categorized as Joubert-Plus syndrome. The co-occurrence of both disease entities in one patient has been reported only in a few case reports. In addition, the cystic dilatation of the posterior fossa in Dandy-Walker malformation can mask recognition of the molar tooth sign unless there is a high index of suspicion. We hereby present our experience with diagnosing a combined Joubert syndrome and Dandy-Walker malformation in a 3-year-old girl using magnetic resonance imaging and CT scan after she presented with generalized floppiness since birth.
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spelling doaj-art-ab7cc043c25843a19b0f667a40dd6fff2025-08-20T02:36:42ZengElsevierRadiology Case Reports1930-04332025-09-012094701470510.1016/j.radcr.2025.05.103Joubert Plus syndrome in a child with Dandy-Walker malformation and occipital cephalocele: A case reportTsega Hagos Mehari, MD0Bemnet Mengesha Tessema, MD1Redaie Girmay Gebrekidan, MD2Corresponding author.; Department of Radiology, Mekelle University, Mekelle, EthiopiaDepartment of Radiology, Mekelle University, Mekelle, EthiopiaDepartment of Radiology, Mekelle University, Mekelle, EthiopiaJoubert syndrome is a rare congenital cerebral developmental malformation that primarily affects the cerebellum. It is characterized by the absence or underdevelopment of the cerebellar vermis and a malformed brain stem (molar tooth sign) on a transverse view of the head magnetic resonance imaging scan. Major clinical features of Joubert syndrome are typically present in early infancy, with most children showing delays in gross motor milestones. When associated with other posterior fossa congenital malformations, it is categorized as Joubert-Plus syndrome. The co-occurrence of both disease entities in one patient has been reported only in a few case reports. In addition, the cystic dilatation of the posterior fossa in Dandy-Walker malformation can mask recognition of the molar tooth sign unless there is a high index of suspicion. We hereby present our experience with diagnosing a combined Joubert syndrome and Dandy-Walker malformation in a 3-year-old girl using magnetic resonance imaging and CT scan after she presented with generalized floppiness since birth.http://www.sciencedirect.com/science/article/pii/S1930043325005345Molar tooth signJoubert Plus syndromeDandy-Walker malformationOccipital cephaloceleMagnetic resonance imagingRadiology
spellingShingle Tsega Hagos Mehari, MD
Bemnet Mengesha Tessema, MD
Redaie Girmay Gebrekidan, MD
Joubert Plus syndrome in a child with Dandy-Walker malformation and occipital cephalocele: A case report
Radiology Case Reports
Molar tooth sign
Joubert Plus syndrome
Dandy-Walker malformation
Occipital cephalocele
Magnetic resonance imaging
Radiology
title Joubert Plus syndrome in a child with Dandy-Walker malformation and occipital cephalocele: A case report
title_full Joubert Plus syndrome in a child with Dandy-Walker malformation and occipital cephalocele: A case report
title_fullStr Joubert Plus syndrome in a child with Dandy-Walker malformation and occipital cephalocele: A case report
title_full_unstemmed Joubert Plus syndrome in a child with Dandy-Walker malformation and occipital cephalocele: A case report
title_short Joubert Plus syndrome in a child with Dandy-Walker malformation and occipital cephalocele: A case report
title_sort joubert plus syndrome in a child with dandy walker malformation and occipital cephalocele a case report
topic Molar tooth sign
Joubert Plus syndrome
Dandy-Walker malformation
Occipital cephalocele
Magnetic resonance imaging
Radiology
url http://www.sciencedirect.com/science/article/pii/S1930043325005345
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