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
Acantholysis is seen in all except ? 
Select and explain. 
A. Pemphigus vulgaris, B. Darrier's disease, C. SSSS, D. Bullous pemphigoid
D: Bullous pemphigoid
Answer: D: Bullous pemphigoid 
Explanation: Ans. is 'D'.e., Bullous pemphigoid Acantholysis Separation of epidermal keratinocytes due to loss of intercellular bridge is referred to as acantholysis . Diseases causing acantholysis are : ? Pemphigus (Pemphigus vulgaris, P. vegetans, P.foilaceous, P. erythematosus) Eosinophilic spongiosis Darrier's disease Grover's disease (Transient acantholytic dermatosis) Hailey-Hailey disease (Familial benign chronic pemphigus) Infections with HSV-1 & 2. Staphylococcus scalded skin syndrome.