In MTLE, which hippocampal subfield shows the most severe neuronal loss?

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Multiple Choice

In MTLE, which hippocampal subfield shows the most severe neuronal loss?

Explanation:
In mesial temporal lobe epilepsy with hippocampal sclerosis, the pattern of neuronal loss is region-specific within the hippocampus. The CA1 region, the so-called Sommer’s sector, is the most vulnerable to seizure-induced injury and often shows the most severe neuronal loss with accompanying gliosis. While other subfields like CA3/CA4 and the dentate gyrus can be involved, their neuronal loss is typically less pronounced than in CA1. This makes CA1 the best answer, reflecting the characteristic vulnerability of this subfield in MTLE-related hippocampal sclerosis.

In mesial temporal lobe epilepsy with hippocampal sclerosis, the pattern of neuronal loss is region-specific within the hippocampus. The CA1 region, the so-called Sommer’s sector, is the most vulnerable to seizure-induced injury and often shows the most severe neuronal loss with accompanying gliosis. While other subfields like CA3/CA4 and the dentate gyrus can be involved, their neuronal loss is typically less pronounced than in CA1. This makes CA1 the best answer, reflecting the characteristic vulnerability of this subfield in MTLE-related hippocampal sclerosis.

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