Figure 1: a. H & E, showing a subepidermal blister (black arrow). b. PAS shows also subepidermal blister (black arrow), and some base membrane reinforcement (blue arrow). 2c,d and e , Some herpetical ballooning of keratinocytes, with margination of cell chromatin present and occasional multinucleated cells with cytopathic effects(black arrows) f, g , and h IHC positive staining to HSV 1(black arrows). i . DIF positive staining with anti-JAM-A antibody (pink staining, indicated with white arrows and star) in the entire epithelial area where the HSV virus was found.