This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Skin
[{'content': 'Acantholytic cells in blister cavity ? \nSelect and explain. \nA. Pemphigus, B. Bullous pemphigoid, C. Epidermolysisbullosa, D. Dermatitis herpetiformis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Pemphigus Impoant Tzank smear finding of bullous lesions VZV and HSV infection --> Multinucleated giant cells Pemphigus --> Acontholytic cells Pemphigoid --> Predominantly eosinophils", 'role': 'assistant'}]