SUPERFICIAL AND DEEP PERIVASCULAR DERMATITIS

PSORIASIFORM - LICHENOID

Lymphocytes predominate Periadnexal infiltrate, individual necrotic keratinocytes Lichen striatus
Wiry bundles of collagenin upper part of dermis, lymphocytes in epidermis Mycosi fungoides, plaque
Histiocytes and ,sometimes, plasma cells predominate   Syphilis, secondary