Introduction: Joubert syndrome is an inherited disorder of rare occurrence usually presenting as developmental delay, hypotonia, hyperpnea and ataxia. The diagnosis is confirmed by characteristic findings in neuroimaging. Involvement of ocular, renal and hepatic systems can be present. Joubert syndrome presenting first to an ophthalmologist is very uncommon.
Case: A twenty-one-year female, with history of delayed milestones, infantile hemiplegia with hearing and visual impairment was referred for visual assessment. On systemic examination, ataxic gait was present. CT head showed hypoplasia of postero-inferior portion of vermis with communication between 4th ventricle and cisterna magna with variable degree of cerebellar dysgenesis. The neurological, ophthalmological and radiological findings of this patient were consistent with Joubert syndrome related disorder.
Conclusion: We hereby report a case of Joubert syndrome related disorder with ocular involvement which after correlation with neurological findings and neuroimaging led us to the diagnosis of this rare disorder. The renal and hepatic functions in these patients need to be monitored.
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http://dx.doi.org/10.3126/nepjoph.v14i1.35163 | DOI Listing |
Prog Retin Eye Res
December 2024
Department of Ophthalmology, Leiden University Medical Center, Leiden, the Netherlands; Department of Ophthalmology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
Retinitis pigmentosa (RP) is a progressive inherited retinal dystrophy, characterized by the degeneration of photoreceptors, presenting as a rod-cone dystrophy. Approximately 20-30% of patients with RP also exhibit extra-ocular manifestations in the context of a syndrome. This manuscript discusses the broad spectrum of syndromes associated with RP, pathogenic mechanisms, clinical manifestations, differential diagnoses, clinical management approaches, and future perspectives.
View Article and Find Full Text PDFClin Genet
December 2024
Department of Medical Genetics, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey.
Renal ciliopathies are a genetically and phenotypically heterogeneous group of diseases characterized by cystic and dysplastic kidneys. The aim of this study was to investigate the correlation between genetic changes that cause renal ciliopathies and phenotypic outcomes. The study group consisted of 137 patients diagnosed with renal ciliopathy disease.
View Article and Find Full Text PDFBMC Pregnancy Childbirth
December 2024
Department of Obstetrics, School of Medicine, Chengdu Women's and Children's Central Hospital, University of Electronic Science and Technology of China, Chengdu, China.
Background: Prenatal whole exome sequencing (WES) is becoming an increasingly used diagnostic tool for fetuses with structural anomalies. However, the identification of variants of uncertain significance (VUS) in clinically relevant genes can significantly complicate prenatal diagnosis and genetic counseling.
Case Presentation: A fetus conceived through in vitro fertilization at the third attempt presented with polydactyly and molar tooth sign at 24 + 6 weeks of gestation.
Radiol Case Rep
February 2025
Department of Radiology, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed First, Oujda, Morocco.
Joubert syndrome is a rare autosomal recessive disorder characterized by the presence of the molar tooth sign on imaging. We report the case of a 5-year-old girl diagnosed with Joubert syndrome during the investigation of chronic vomiting. The patient presented with neuropsychomotor delay, a history of neonatal respiratory disorders, and hydrocephalus treated with a ventriculoperitoneal shunt.
View Article and Find Full Text PDFJ Cell Biol
February 2025
Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA.
Tubulin polyglutamylation is a posttranslational modification that occurs primarily along the axoneme of cilia. Defective axoneme polyglutamylation impairs cilia function and has been correlated with ciliopathies, including Joubert Syndrome (JBTS). However, the precise mechanisms regulating proper axoneme polyglutamylation remain vague.
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