Periventricular leukomalacia primarily affects which tissue region in premature infants?

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Multiple Choice

Periventricular leukomalacia primarily affects which tissue region in premature infants?

PVL is an injury pattern that targets the white matter around the ventricles in premature infants. This periventricular white matter is particularly vulnerable to hypoxic-ischemic injury because it contains many premyelinating oligodendrocyte precursors essential for later myelination. When these cells are damaged, the resulting impairment of myelination and possible focal necrosis leads to cystic changes centered near the lateral ventricles. That’s why the primary tissue region affected is the periventricular white matter around the lateral ventricles. While other deep structures like the basal ganglia, cerebellum, or brainstem can be involved in different neonatal injuries, PVL specifically denotes injury to the periventricular white matter.

PVL is an injury pattern that targets the white matter around the ventricles in premature infants. This periventricular white matter is particularly vulnerable to hypoxic-ischemic injury because it contains many premyelinating oligodendrocyte precursors essential for later myelination. When these cells are damaged, the resulting impairment of myelination and possible focal necrosis leads to cystic changes centered near the lateral ventricles. That’s why the primary tissue region affected is the periventricular white matter around the lateral ventricles. While other deep structures like the basal ganglia, cerebellum, or brainstem can be involved in different neonatal injuries, PVL specifically denotes injury to the periventricular white matter.

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