Two Sibling Cases of Spastic Paraplegia-45 with a Novel Pathogenic Variant in Gene: Concomitant Gene in One Sibling.

Introduction: Hereditary spastic paraplegia () is a genetically and clinically heterogeneous group of rare neurodegenerative disorders. SPG45 is the AR inherited type of complicated SPG, which is due to a mutation in the gene.

Case Presentation: Two sisters, aged 8 and 4, exhibited delayed motor development since early childhood.

Evaluation of the Patients with the Diagnosis of Pontocerebellar Hypoplasia: A Multicenter National Study.

Pontocerebellar hypoplasia (PCH) is a heterogeneous group of neurodegenerative disorders characterized by hypoplasia and degeneration of the cerebellum and pons. We aimed to identify the clinical, laboratory, and imaging findings of the patients with diagnosed PCH with confirmed genetic analysis. We collected available clinical data, laboratory, and imaging findings in our retrospective multicenter national study of 64 patients with PCH in Turkey.

Clinical and Genetic Spectrum of Myotonia Congenita in Turkish Children.

Background: Myotonia congenita is the most common form of nondystrophic myotonia and is caused by Mendelian inherited mutations in the CLCN1 gene encoding the voltage-gated chloride channel of skeletal muscle.

Objective: The study aimed to describe the clinical and genetic spectrum of Myotonia congenita in a large pediatric cohort.

Methods: Demographic, genetic, and clinical data of the patients aged under 18 years at time of first clinical attendance from 11 centers in different geographical regions of Türkiye were retrospectively investigated.

Treatment Dilemma in Juvenile Huntington's Patient Presenting with Psychiatric Symptoms.

The Westphal variant of Huntington's disease (HD) is a progressive neurodegenerative disease characterized by a rigid-hypokinetic syndrome rather than choreiform movements. This variant is a distinct clinical entity of HD and is often associated with a juvenile onset of the disease. We present the case of a 13-year-old patient diagnosed with the Westphal variant with an onset at approximately 7 years of age and primarily exhibited developmental delay and psychiatric symptoms.