• Huasheng Huang, Yuqi Liao, Yanni Yu, HuiHui Qin, Yi Zhi Wei, and Liming Cao.
• Department of Neurology, Liuzhou People's Hospital, Liuzhou, Guangxi Zhuang Autonomous Region, China.
• Medicine (Baltimore). 2024 Oct 25; 103 (43): e40248e40248.

RationaleNeuronal ceroid lipofuscinoses (NCLs) are rare, fatal, inherited neurodegenerative disorders characterized by myoclonic epilepsy, cognitive decline, brain atrophy, and retinopathy. The pathogenesis and clinical manifestations of NCL are not well understood and frequently result in misdiagnosis and overtreatment. The aim of this case report and review is to improve our understanding of the clinical features and management of NCL.Patient ConcernsA 36-year-old woman initially presented with refractory epilepsy.DiagnosesInitially diagnosed with autoimmune encephalitis, the patient was later diagnosed with normal-pressure hydrocephalus. A definitive diagnosis of adult-onset neuronal ceroid lipofuscinosis (ANCL) was established after 10 years of observation, utilizing biopsy and genetic testing.InterventionsHigh-dose intravenous immunoglobulin and methylprednisolone were administered, along with the insertion of a ventriculoperitoneal shunt.OutcomesDespite various treatments, the patient's condition did not improve.LessonsANCL typically presents with the clinical triad of refractory seizures, progressive cognitive decline, and movement disorders. Neuroimaging often reveals progressive brain atrophy on magnetic resonance imaging, while electroencephalograms frequently show epileptiform discharges. The prognosis is generally poor. Improved understanding of ANCL from both clinical and radiological perspectives, coupled with early consideration of differential diagnoses, could minimize unnecessary interventions and optimize patient care.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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