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Two patients, 48- and 50-year-old sisters, presented with a characteristic facial appearance with slowly progressive deafness and cerebellar ataxia starting in their 30s. Genetic testing identified compound heterozygous pathogenic variants in the ERCC6 gene: c.1583G>A (p.G528E) and c.1873T>G (p.Y625D). A diagnosis of Cockayne syndrome (CS) B type III was made. CS is usually diagnosed in childhood with well-defined facial characteristics and photosensitivity. This case report describes rare cases of adulthood CS with a primary presentation of slowly progressing deafness and cerebellar ataxia. CS should be considered in adults with characteristic facial and skin findings, deafness, and cerebellar ataxia.
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http://dx.doi.org/10.2169/internalmedicine.0061-22 | DOI Listing |
J Am Acad Audiol
September 2025
Paraneoplastic cerebellar degeneration (PCD) is a rare neurological disorder caused by tumor-mediated antibodies targeting the cerebellum, often leading to irreversible cerebellar damage. The most common antibody implicated in PCD is anti-Purkinje cell cytoplasmic antibody type-1, associated with malignancies such as breast, gynecological, and lung cancers. Symptoms often include dizziness, imbalance, progressive ataxia, and other cerebellar signs/symptoms, but early presentations may mimic acute vestibular syndrome, thus complicating diagnosis.
View Article and Find Full Text PDFBrain Behav
September 2025
Department of Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan.
Background: Y69H (p.Y89H) variant hereditary transthyretin (ATTRv) amyloidosis causes meningeal amyloidosis, with mutant TTR deposits localized to the leptomeninges and vitreous body.
Methods: The effect of tafamidis meglumine on neurological disorders, such as the frequency of transient focal neurological episodes (TFNEs), magnetic resonance imaging (MRI) findings, and TTR levels in cerebrospinal fluid, was investigated in two patients diagnosed with Y69H ATTRv mutation.
J Neurol
September 2025
Department of General Practice, The First People's Hospital of Lin'an District, Hangzhou, Lin'an People's Hospital Affiliated to Hangzhou Medical College, Hangzhou, 310000, Zhejiang Province, China.
Anti-mGluR1 encephalitis is a rare autoimmune disorder manifesting with cerebellar syndrome with varying levels of severity. However, limited data exist regarding the clinical features and treatment strategies for patients suffering from encephalitis associated with anti-mGluR1 antibodies. Herein, we comprehensively review and discuss clinical features of anti-mGluR1 encephalitis to enhance our understanding of this rare disorder.
View Article and Find Full Text PDFBMC Neurol
September 2025
Department of Neurology, University Hospital, RWTH Aachen University, Pauwelsstrasse 30, Aachen, North Rhine-Westphalia, Germany.
Background: Cerebellar pathologies in adults can have a wide range of hereditary, acquired and sporadic-degenerative causes. Due to the frequency in daily hospital, especially intensive care, settings, electrolyte imbalances are an important, yet rare differential diagnosis. The hypomagnesemia-induced cerebellar syndrome (HiCS) constitutes a relevant disease entity with clinical and morphological variability due to a potential progression of symptoms and a promising causal treatment.
View Article and Find Full Text PDFJCI Insight
September 2025
Department of Pharmacology, University of Michigan Medical School, Ann Arbor, Michigan, USA.
Patients with Dravet syndrome (DS) present with severe, spontaneous seizures and ataxia. While most patients with DS have variants in the sodium channel Nav1.1 α subunit gene, SCN1A, variants in the sodium channel β1 subunit gene, SCN1B, are also linked to DS.
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