Blistering, Localized


Fig. 14.1 Microscopy of selected localized blistering conditions. *Can also be subepidermal. 



Disorders With a Characteristic Morphology


Bullous impetigo (Fig. 14.2) – somewhat tense vesicles/bullae or superficial erosions with collarettes of scale


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Fig. 14.2 Bullous impetigo. A,B, Courtesy, Yale Dermatology Residents’ Slide Collection. B, From Bolognia JL, Jorizzo JL, Schaffer JV. Dermatology, 3e. London: Saunders, 2012, with permission.

Herpes virus infection (Fig. 14.3) – clustered vesicles and crusts (borders of coalescing lesions may be scalloped), often on an erythematous base; older lesions may be eroded/ulcerated


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Fig. 14.3 Herpes simplex virus infection. Note the scalloped borders to the coalescing lesions. Older lesions can be punched-out ulcerations (B). A,B, Courtesy, Yale Dermatology Residents’ Slide Collection.

Leukocytoclastic vasculitis (Fig. 14.4) – palpable purpura, sometimes with focal blisters


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Fig. 14.4 Leukocytoclastic vasculitis. Purpuric red–purple papules are focally surmounted by bullae. A, Courtesy, William Damsky, MD.

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Mar 5, 2017 | Posted by in Dermatology | Comments Off on Blistering, Localized

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