SUPERFICIAL AND DEEP PERIVASCULAR DERMATITIS
BALLOONING
| Ballooning only | Lymphocytes predominate | Hydroa aestivale Hydroa vacciniforme |
|
| Interface | Lymphocytes predominate | Steel-gray nuclei, margination of chromatin | Herpes virus infection |
| Individual necrotic keratinocytes, neutorphils, and eosinophils among predominanat lymphocytes | Fixed drug eruption | ||
| Spongiosis | Lymphocytes predominate | Individual necrotic keratinocytes and neutropils as solitary units in epidermis | Toxic shock syndrome |