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Human Body & Health

Why does severe lymphedema increase susceptibility to skin infections?

A)Increased immune cell migration
B)Enhanced epidermal barrier function
C)Impaired antigen presentation locally
D)Decreased local blood perfusion

💡 Explanation

Lymphedema obstructs lymphatic drainage, which disrupts antigen presentation by antigen-presenting cells within the affected tissue. This impairment reduces the local immune response because it hinders the activation of T cells and other immune cells. Therefore, the area becomes more vulnerable to infection rather than being protected by enhanced barrier function or increased immune cell migration.

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