Infantile bilateral striatal necrosis. Clinicopathological classification

Area of Science:

• Neurology
• Pediatric Neurology
• Neuroscience

Background:

• Infantile bilateral striatal necrosis (IBSN) is a rare, severe neurological disorder affecting infants.
• Characterized by progressive neurological deterioration, including involuntary movements and muscle hypertonia.

Observation:

• Retrospective analysis of two infantile bilateral striatal necrosis cases.
• Review of 27 previously reported cases, categorized by onset and clinical features.
• Initial CT scans indicated mild caudate nucleus or basal ganglia atrophy.

Findings:

• Neuropathological examination revealed diffuse neuronal loss with patchy preservation and marked astrogliosis in the striatum and globus pallidus.
• Cases were classified into early acute onset (4), early gradual onset (16), and late onset (7) groups.
• Metabolic disturbances in the developing corpus striatum are hypothesized to play a role.

Implications:

• Understanding the clinical and pathological heterogeneity of IBSN is crucial for diagnosis.
• Further research into the uncertain etiology of IBSN is warranted.
• Identifying the precise pathogenesis may lead to targeted therapeutic strategies for affected children.