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
Acantholytic cells in blister cavity ? 
Select and explain. 
A. Pemphigus, B. Bullous pemphigoid, C. Epidermolysisbullosa, D. Dermatitis herpetiformis
A: Pemphigus
Answer: A: Pemphigus 
Explanation: 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