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Principles of Dermatological Diagnosis - Dermatology

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Mast Cells<br />

Arranged along dermal blood vessels<br />

Contain histamine, heparin and other products that<br />

are either preformed or produced which act on<br />

blood vessels as well as release inflammatory<br />

cytokines<br />

Very important in allergic disease and itching<br />

Mast Cell Granules<br />

23

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