<prompt> A female presents with persistent painful oral lesions, with acanthOlYtIZ cells. Most likely dipiosisiSPemphigus vulgarisDermatitis herpetiformisEpidermolysis bullosaBullous pemphigoid  <response>: In pemphigus vulgaris skin involvement stas in the form of flaccid blisters. Cutaneous lesions are usually preceded by blisters and erosions of oral mucosa. HP shows a suprabasal cleft with bulla formation just above the basal layer with a tomb stone appearance and with blister cavity containing acantholytic cells and inflammatory cells. page no.280.282. Reference IADVLs concise textbook of dermatology 