<prompt> Acantholysis is seen in all exceptPemphigus vulgarisDarriers diseaseSSSBullous pemphigoid  <response>: Acantholysis seen in diseases such as pemphigus vulgaris, pemphigus foliaceous,SSS, Dariers disease. It is absent in bullous pemphigoid, making it useful for differential diagnosis. page no.110.Reference IADVLs concise textbook of dermatology 