1.Ballooning only

1)Lymphocyte predominate
                   Hydroa aestivale/Hydroa vacciniforme

2.Interface
1)Lymphocyte predominate
      a)Steel-gray nuclei, margination of chromatin 
                     Herpesvirus infection
       b)Individual necrotic keratinocytes. neutrophils, and eosinophils 
        among predominant lymphocytes
                      Fixed drug eruption

3.Spongiosis
1)Lymphocyte predominate
      a)Individual necrotic keratinocytes and neutrophils
       as solitary units in epidermis  
                     Toxic shock syndrome