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Multicystic encephalomalacia of infancy: clinico-pathological report of 7 cases
Insights
Multicystic encephalomalacia in infants results from prenatal injuries like cord prolapse or maternal infections. Brain lesions often spare the cerebellum and brain stem, suggesting anoxic events impacting specific vascular territories.
Area of Science:
- Neuropathology
- Pediatric Neurology
- Neuroscience
Background:
- Multicystic encephalomalacia (MCE) is a severe brain abnormality in infants.
- Understanding its etiology and neuropathological patterns is crucial for diagnosis and management.
Observation:
- Seven infant cases of MCE underwent clinical and neuropathological examination.
- Etiological factors included prenatal injuries (e.g., cord prolapse), prolonged labor, abdominal trauma, and maternal infections.
Findings:
- Brain lesions in MCE showed variable involvement, typically sparing the cerebellum and brain stem.
- Occipito-temporal areas were minimally or not affected.
- Lesion distribution correlated with vascular territories (carotid and vertebro-basilar systems).
Implications:
- The anoxic theory is strongly supported as the most probable cause of MCE.
- Differential vulnerability of brain regions to injury may explain the observed lesion patterns.
- Findings aid in understanding infant brain injury mechanisms and potential preventative strategies.
Abstract:
Clinical follow up and complete neuropathological examination was made on seven cases of multicystic encephalomalacia of infancy. Etiological factors were carefully studied in all the cases. They consisted of prenatal injuries presenting as a cord prolapse, in 3 cases; prolonged labour with marked cyanosis; abdominal trauma during gestation, and various maternal infections at different stages of pregnancy. Pathological interest is centred on the variable involvement of different areas of the brain, generally sparing the cerebellum and brain stem, and being minimal or absent in the occipito-temporal areas. This distribution may be explained by a different effect of the "causal agency" on these different areas, or by a different capacity of these regions to react against injury. Among the etiological factors reviewed in the literature, the anoxic theory appears the most probable, as there was a close parallelism between lesions and vascular areas, mainly the carotid and vertebro-basilar systems.