Clinical Features:

• Generalized, chronic, small erythematous papules that evolve to form a pinpoint dusky center
• Lesions persist for several weeks, then heal without scarring.
• May evolve from PLEVA or arise de novo.

Histologic Features:

• Parakeratotic scale, rare necrotic keratinocytes, mild basal vacuolization (changes less pronounced than in PLEVA)
• Upper dermal perivascular lymphocytic infiltrate with exocytosis of lymphocytes into the epidermis
• Upper dermal and epidermal hemorrhage

Cases associated with this book:

Pityriasis lichenoides chronica
Author: Stephen Lyle, M.D., Ph.D.

Conference: DermatopathologyConsultations.com Teaching Collection