Teaching collection
Papulosquamous differential
Psoriasis, lichen planus, pityriasis rosea, secondary syphilis, Bowen disease, MF (patch/plaque) — the classic scaly-plaque board set.
2 conditions tagged papulosquamous-ddx.
Lichen planus
Editorial
T-cell-mediated inflammatory dermatosis classically defined by the 'four P's' (purple, pruritic, polygonal papules); lichen planus pigmentosus is a distinct skin-of-color variant.
4 imagesL43.9
Psoriasis
Editorial
Chronic immune-mediated inflammatory skin disease with distinct morphology in skin of color (violaceous rather than salmon-pink); treatable to clear with modern biologics.
24 imagesL40.0