Psoriasis can be classified according to clinical appearance, morphology, and localization. According to the International Psoriasis Council, psoriasis may be classified into four subtypes: plaque-type psoriasis, guttate psoriasis, generalized pustular psoriasis (GPP), and erythroderma. Several further subphenotypes have been named according to distribution (localized vs. widespread), anatomical localization (flexural or inverse, scalp, palms/soles/nail), size (large vs. small) and thickness (thick vs. thin) of plaques, onset (early vs. late), and disease activity (active vs. stable).
Psoriasis classification
Vitiligo classification
Acne vulgaris classification
Eczema classification
Alopecia classification
Psoriasis laboratory findings
Psoriasis physical examination
Dermatophytosis classification