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Dermatology Board Practice Questions - Saudi Board Dermatology Final Written Exam

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A 45-year-old patient presents with painful oral mucosal erosions followed by the development of flaccid cutaneous bullae on the trunk. Direct immunofluorescence of a perilesional skin biopsy reveals intercellular IgG and C3 deposition throughout the epidermis. Which of the following is the primary autoantigen target in the mucosal-dominant form of this disease?
Correct Answer:
Desmoglein 3

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