SKIN LESION (SECONDARY SKIN)

Skin Lesion Secondary Skin Lesion Lesion that develops from trauma, manipulation (rubbing, scratching), complication (infection) of initial lesion, or develops naturally over time Primary Skin Lesion Initial lesion not altered by trauma, manipulation (rubbing, scratching), complication (infection), or natural regression over time. Elevated Depressed • Crust/Scab (dried serum, blood, or pus overlying the lesion) • Scale (dry, thin or thick flakes of skin overlying the lesion) • Lichenification (thickened skin with accentuation of normal skin lines) • Hypertrophic Scar (within boundary of injury) • Keloid Scar (extend beyond boundary of injury) • Atrophic Scar (fibrotic replacement of tissue at site of injury) • Ulcer (complete loss of epidermis extending into dermis or deeper; heals with scar) • Erosion (partial loss of epidermis only; heals without scar) • Fissure (linear slit-like cleavage of skin) • Excoriation/Scratch (linear erosion induced by scratching) Rash: Morphology of skin lesions: secondary skin lesions Author: The Calgary Blackbook, 10th edition *Indicates Key Condition This is not an exhaustive list of medical conditions.