1 MCQs in Dermatology for NEET PG
A 34-year-old man presents with fever, severe mucosal erosions (eyes, lips, oropharynx), and painful dysuria 14 days after starting carbamazepine for trigeminal neuralgia. Examination reveals atypical targetoid macules on the face and trunk that have rapidly coalesced into dusky, purpuric patches and flaccid bullae. Pressure on involved skin produces full-thickness sloughing in sheets (positive Nikolsky sign) over 22% of body surface area. Skin biopsy demonstrates full-thickness epidermal necrosis with subepidermal cleavage and sparse lymphocytic infiltrate. The clinical and histopathological findings shown in the diagram at **A** are consistent with which classification?
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