Differential Diagnosis in Dermatopathology

Differential Diagnosis

Lichen planus Lichenoid secondary syphilis 1. No parakeratosis 1. Parakeratosis often 2. Acanthosis with a jagged base usually 2. Acanthosis psoriasiform usually; base rarely jagged 3. No pallor in the upper half of the epidermis 3. Pallor s…