Classification of Skin Lesions

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Characteristics of Major Problem-Orientated Groups

Group 1: The Vesiculobullous Diseases
Characterised by clear fluid filled blisters (eg Herpes simplex; scabies; pemphigus; versicular tinea pedis)
Group 2: The Pustular Diseases
Characterised by yellow pus filled blisters (eg Rosacea; bacterial folliculitis; candidiasis)
Group 3: The Skin Coloured Papules and Nodules
Characterised by skin coloured lesions that may have a rough or smooth surface (eg verruca; heloma durum; skin tags; squamous cell carcinomas)
Group 4: The White Lesions
Characterised by white macular patches or by white papules (eg vitiligo; molluscum contagiosum)
Group 5: The Brown-Black Lesions
Characterised by brown macules or patches or by brown papules (eg freckles; seborrheic keratosis; melanomas; tinea versicolour)
Group 6: The Yellow Lesions
Characterised by either a smooth surface or by crusted yellow lesions (eg impetigo)
Group 7: The Inflammatory Papules and Nodules
Characterised by red, elevated lesions (eg cellulitis; insect bites; lichen planus; erythema nodosum)
Group 8: The Vascular Reactions
Characterised by a combination of vasodilation, oedema, and purpura (eg urticaria; erythema nodosum; cellulitis)
Group 9: The Papulosquamous Diseases
Characterised by papules and plaques with sharp margins (eg psoriasis; lupus erythematosus; lichen planus)
Group 10: The Eczematous Disease
Characterised by papules and plaques that have poor margins and may or may not have excoriations. Acute eczema is weeping and crusted, whereas chronic eczema is dry and scaling (eg atopic dermatitis; stasis dermatitis; fungal eczema; contact dermatitis)

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