Perivascular cellular infiltrates, oedema, cell duestruction and granuloma formation are pathologic lesions seen in which type of hypersensitivity reaction?Type IType IIType IIIType IV
Question
Perivascular cellular infiltrates, oedema, cell duestruction and granuloma formation are pathologic lesions seen in which type of hypersensitivity reaction?Type IType IIType IIIType IV
Solution
The pathologic lesions you described - perivascular cellular infiltrates, oedema, cell destruction, and granuloma formation - are typically seen in a Type IV hypersensitivity reaction. This type of reaction is also known as a delayed hypersensitivity reaction because it usually takes more than 12 hours to develop. It's mediated by T cells and does not involve antibodies, unlike the other types of hypersensitivity reactions.
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