PsoriasisVulgarisMicrograph.jpg

Micrograph of psoriasis vulgaris. Confluent parakeratosis, psoriasiform epidermal hyperplasia [(A), EH], hypogranulosis, and influx of numerous neutrophils in the corneal layer [(A), arrow]. (B) Transepidermal migration of neutrophils from the dermis to the corneal layer (arrows).