Neuronal ceroid lipofuscinosis: a clinicopathological study

Area of Science:

• Neurology
• Genetics
• Pathology

Background:

• Neuronal ceroid lipofuscinosis (NCL) comprises a group of rare, inherited neurodegenerative disorders.
• These disorders are characterized by the accumulation of autofluorescent ceroid-lipofuscin material within cells.
• Clinical presentations vary widely, encompassing infantile, juvenile, and adult-onset forms.

Purpose of the Study:

• To detail the clinical, electrophysiological, radiological, and morphological features of Neuronal Ceroid Lipofuscinosis (NCL) cases.
• To emphasize the diagnostic significance of histopathological findings in NCL.
• To analyze the spectrum of NCL manifestations in a South Indian cohort.

Main Methods:

• Retrospective analysis of 12 histopathologically confirmed Neuronal Ceroid Lipofuscinosis (NCL) cases.
• Clinical data collection, including age at presentation, family history, and presenting symptoms.
• Neurophysiological (EEG, nerve conduction studies), radiological (CT scan), and morphological (biopsy, autopsy) investigations.

Main Results:

• Juvenile onset was the most common form (67%).
• Key symptoms included regression of milestones, seizures, myoclonus, visual loss, and ataxia.
• Histopathology revealed characteristic intracellular ceroid material; electron microscopy showed specific inclusions.

Conclusions:

• Neuronal Ceroid Lipofuscinosis (NCL) presents with diverse clinical features.
• Characteristic histopathological findings, including ceroid material, are essential for diagnosis.
• This study highlights the importance of comprehensive evaluation for NCL diagnosis.