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Suction blister Presentation stereotypical Individual lesions Vesicles and bullae Findings histopathologic Fully developed Subepidermal blister beneath which dermal papillae are preserved No infiltrate of inflammatory cells Correlation clinicopathologic Suction causes a blister to form between the plasma membrane of basal cells and the basal lamina, the result being a subepidermal vesicle devoid of inflammatory cells. […]