<prompt> Row of tombstones appearance is seen in:Irritant dermatitisPemphigusPemphigoidHerpes zoster  <response>: Ans. b PemphigusRef: Robbins 9thpg 1167DiseaseBiopsy featuresDIFPemphigus vulgaris Suprabasal acantholytic vesicle tombstone pattern Q Mixed perivascular infiltrate with eosinophils QIgG within suprabasal intercellular spaces-fishnet pattern Q 