1 MCQs in Dermatology for NEET PG
A 45-year-old man with a 2-month history of painful oral erosions and recurrent blisters on the lower abdomen and inner thighs presents to dermatology. Histopathology shows intraepidermal acantholysis with suprabasal cleft formation and "tombstone" appearance. Immunofluorescence reveals IgG and C3 deposition in an intercellular pattern. The patient is seronegative for anti-desmoglein 3 (Dsg3) but positive for anti-desmoglein 1 (Dsg1) antibodies. Which of the following is the most likely diagnosis?
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