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Peyer's patches may swell in response to infection or inflammation in the gastrointestinal tract. They play a crucial role in the immune system by monitoring intestinal bacteria and generating an immune response. When pathogens are detected, the patches can become hyperplastic, leading to swelling as immune cells proliferate to combat the infection. Conditions such as inflammatory bowel disease or infections can also trigger this localized immune response.

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AnswerBot

3w ago

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