case_images: PMC9039429_01
case_images: Erythematous annular plaques with vesicles in a string-of-pearls configuration on the right forearm.
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case_images: PMC9039429_01_10.1177_2050313X221093128-fig1.jpg
case_images: fig1-2050313X221093128
case_images: On physical examination, tense bullae and vesicles were clustered in an annular string-of-pearls arrangement on an erythematous base on both forearms (Figure 1).
case_images: Lichenified erythematous plaques with vesicles and crusted lesions on dorsal hands and fingers.
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case_images: PMC9039429_01_10.1177_2050313X221093128-fig2.jpg
case_images: fig2-2050313X221093128
case_images: Lichenified erythematous plaques with overlying vesicles and some bullae were distributed acrally on dorsal hands and feet (Figure 2).
case_images: Subepidermal blister rich in eosinophils with perivascular eosinophilic inflammatory infiltrates on hematoxylin-eosin staining (magnification x10).
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case_images: PMC9039429_01_10.1177_2050313X221093128-fig3.jpg
case_images: fig3-2050313X221093128
case_images: Histopathology with hematoxylin and eosin staining showed subepithelial bullous dermatitis with numerous eosinophils as well as perivascular chronic inflammation rich in eosinophils (Figure 3).
case_images: IgG and C3 deposits on both epidermal and dermal sides on the salt-split technique of direct immunofluorescence study (magnification x40).
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case_images: PMC9039429_01_10.1177_2050313X221093128-fig4.jpg
case_images: fig4-2050313X221093128
case_images: Salt-split skin study revealed IgG and C3 deposits along both epidermal and dermal sides of the split (Figure 4).