<prompt> A middle aged female has flaccid bullae in the skin and oral erosion. Histopathology shows intraepidermal acanthololytic blisters. The most likely diagnosis isPemphigus vulgarisParaneoplastic pemphigusBullous pemphigoidDermatitis hepatiformis  <response>: Clues given are :-Flaccid bullaeOral erosion mucosal involvementIntraepidermal acantholysisDiagnosis is pemphigus vulgaris. 