A 70-year-old man comes to the emergency department because of a skin rash and severe itching. He appears ill; there is a generalized skin rash that is scaly, erythematous, and thickened. His palms, soles, and scalp are also involved. Which of the following is the most likely diagnosis?
Aerythroderma (exfoliative dermatitis)
Bpemphigus vulgaris
Cdermatitis herpetiformis
Drosacea
Identify the diagnosis based on the dermatology immunofluorescence (IF) image provided.
APemphigus vulgaris
BPemphigus foliaceus
CBullous pemphigoid
DDermatitis herpetiformis
Which of the following drugs can lead to pemphigus?
ACarbamazepine
BPenicillamine
CIsoniazid
DFurosemide
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