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Subacute necrotizing encephalomyelopathy in a neonatal infant
Journal of Neuropathology and Experimental Neurology
|March 1, 1977
Summary
This study details a rare case of subacute necrotizing encephalomyelopathy in an infant, presenting as sudden apnea. The findings suggest a potential link between this neurological condition and some cases of crib death.
Area of Science:
- Neurology
- Pediatric Pathology
Background:
- Sudden infant death syndrome (SIDS), or "crib death," remains a significant concern in pediatrics.
- Understanding the underlying neuropathology of SIDS is crucial for diagnosis and prevention.
Observation:
- An infant presented with sudden, unexplained complete apnea at 44 hours of life after an uneventful pregnancy and delivery.
- Despite resuscitation and intensive care, the infant expired after 15 days.
Findings:
- Autopsy revealed bilaterally symmetric lesions in the third ventricle, periaqueductal gray matter, and fourth ventricle floor.
- These lesions showed significant neural destruction with selective neuronal preservation, consistent with subacute necrotizing encephalomyelopathy.
- Preserved neurons exhibited nuclear multiplication (up to 11 nuclei), and binucleated macrophages were observed. Hypoxic changes and intracytoplasmic granules (PAS-positive, some iron-containing) were also noted in neurons.
Implications:
- This case highlights subacute necrotizing encephalomyelopathy as a potential, albeit rare, cause of unexplained infant mortality.
- The findings suggest that some cases previously classified as SIDS might be attributable to this specific neuropathology.
- Further investigation into neuropathological findings in SIDS cases is warranted to identify similar instances.