Pigmented Purpuric Dermatoses (PPD) - Capillaritis



Group of chronic, benign, cutaneous eruptions characterized by the presence of petechiae, purpura, and increased skin pigmentation most commonly occur on the lower extremities



Schamberg Disease:

 • Chronic, benign, cutaneous eruptions characterized by petechiae, purpura, and increased skin pigmentation (brown, red, or yellow patchy)

 • Commonly seen in males and mainly affects the tibial regions, and could involve thighs, buttocks, trunk, or upper extremities

 • Extravasation of blood vessels particularly capillaries which allow red blood cells to get deposited into the skin which then releases their iron from hemoglobin

	- This iron causes a rust color accounting for the orange or brown tint of the rash



Majocchi Purpura:

 • Characterized by annular, purpuric lesions and erythematous punctate lesions, and central clearing with slight atrophy

 • Most common site for involvement is the lower extremities



Gougerot-Blum Purpura:

 • Red-brown lichenoid papules that tend to fuse in plaques in older men



Lichen Aureus:

 • Acute onset of distinctive, rust-yellow or gold colored lichenoid papules or circumscribed patches and plaques

 • Most frequently occurs unilaterally on the lower extremities; bilateral involvement is less common



Eczematoid-Like Purpura of Doucas and Kapetanakis:

 • Usually bilateral, intensely itchy, and characteristically has eczematous features

 • Mild lichenification could be present and has a fluctuation course with spontaneous improvement occasionally



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