Dermatology Glossary Term Characteristics Diameter Example Flat, non-palpable, change in of Macule <1cm Freckles skin Flat, non-palpable, change in color of Patch >1cm Vitiligo skin Papule Solid raised lesion, well circumscribed <1cm Nevi raised lesion, well circumscribed, Plaque superficial, may be flat topped or >1cm Psoriasis rounded Solid palpable lesion, height>width, Nodule <1cm Dermatofibroma appreciable depth. Usually found in dermal or subcutaneous Tumour tissue and the lesion may be above level >1cm Lipoma with or below the skin surface Vesicle Raised, pus-filled lesion <1cm HSV Bulla Raised, pus-filled lesion >1cm Burns Pustule Raised, pus-filled lesion <1cm Pustullar psoriasis Transient, circumscribed elevated papules or plaques often with (Hive/ Urticaria) erythematous borders and pale centres. Allergic reaction Often pruritic, formed by edema in the dermis Superficial break in the skin due to loss Erosion of part or all of the epidermis; heals without scarring Loss of epidermis and at least part of Ulcer dermis; heals with scarring Break in the skin extending from Fissure epidermis to dermis Telegiectasia Foci of visibly dilated capillaries Rosacea Red or purple macule or patch that is Purpura Coagulopathies non-blancheable; area of hemorrhage Diffuse thickening of the epidermis, Lichenification Eczema accentuating normal skin markings Dried exudate of serum, pus or blood Crust Impetigo originating from a lesion Scales A dry build-up of dead skin cells Psorasis Chronic sun Atrophy Thinning of the skin exposure 62 Source: MacNeal, RJ. (2015). Description of Skin Lesions dermatologic-disorders/approach-to-the-dermatologic-patient/description-of-skin-lesions)
Dermatology Glossary Term Characteristics Diameter Example Macule Flat, non-palpable, change in of skin <1cm Freckles Patch Flat, non-palpable, change in color of skin >1cm Vitiligo Papule Solid raised lesion, well circumscribed <1cm Nevi Plaque raised lesion, well circumscribed, superficial, may be flat topped or rounded >1cm Psoriasis Nodule Solid palpable lesion, height>width, appreciable depth. <1cm Dermatofibroma Tumour Usually found in dermal or subcutaneous tissue and the lesion may be above level with or below the skin surface >1cm Lipoma Vesicle Raised, pus-filled lesion <1cm HSV Bulla Raised, pus-filled lesion >1cm Burns Pustule Raised, pus-filled lesion <1cm Pustullar psoriasis (Hive/ Urticaria) Transient, circumscribed elevated papules or plaques often with erythematous borders and pale centres. Often pruritic, formed by edema in the dermis Allergic reaction Erosion Superficial break in the skin due to loss of part or all of the epidermis; heals without scarring Ulcer Loss of epidermis and at least part of dermis; heals with scarring Fissure Break in the skin extending from epidermis to dermis Telegiectasia Foci of visibly dilated capillaries Rosacea Purpura Red or purple macule or patch that is non-blancheable; area of hemorrhage Coagulopathies Lichenification Diffuse thickening of the epidermis, accentuating normal skin markings Eczema Crust Dried exudate of serum, pus or blood originating from a lesion Impetigo Scales A dry build-up of dead skin cells Psorasis Atrophy Thinning of the skin Chronic sun exposure Source: MacNeal, RJ. (2015). Description of Skin Lesions 62 dermatologic-disorders/approach-to-the-dermatologic-patient/description-of-skin-lesions)
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