This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vesiculobullous (Blistering) Disorders, Subject name: Skin
Tzank smear is prepared for - 
Select and explain. 
A. Leprosy, B. Varicella, C. Fungus, D. Atopic dermatitis
B: Varicella
Answer: B: Varicella 
Explanation: Ans. is 'b' i.e., Varicella Tzank smear findings in bullous disordersDisordersFindingso Pemphiguso Bullous pemphigoido Varicella-zoster infectiono Herpes simpex infectiono Toxic epidermal necrolysisAcantholysisPredominantly eosinophilsMultinucleated giant cellsMultinucleated giant cellsNecrotic cells