<prompt> Desmoglein 1 antibody in a patient with flaccid bulla and erosions on the face and trunk and sparing the mucosa is seen in ?Dermatitis HerpetiformisP vulgarisP foliaceousBullous pemphigoid  <response>: Pemphigus vulgaris most common Pemphigus foliaceous Clinical feature:- Early disease - Dsg3 Mucosa Late disease - Dsg3 Dsg1Skin Dsg-1 Only Skin involvement Investigations - Histological: Row of tombstone appearance DIF Fish net like Pattern IgG Ab Dsg 3 1 Dsg 1 