1 MCQs in Dermatology for NEET PG
A 35-year-old man presents with a 6-month history of intensely pruritic skin lesions on his elbows, knees, and buttocks. On examination, the structure marked **A** (grouped vesicles on extensor surface) is noted bilaterally and symmetrically. Direct immunofluorescence of perilesional skin shows granular IgA deposits at the dermal papillae tips. Which of the following best explains the pathogenesis of the cutaneous manifestations in this patient?
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