Secondary skin lesions

Atrophy - Skin surface thins and markings disappear, semitransparent parchment-like appearance

Crust - Reddish, brown, black, tan, or yellowish dried blood, serum, or pus

Erosion - Depression in epidermis, caused by tissue loss

Excoriation - Linear, may be hollow or crusted, caused by loss of epidermis leaving dermis exposed

Fissure - Linear red crack ranging into dermis

Keloid - Elevated scar, irregular shape, larger than original wound

Lichenification - Thickening and hardening of epidermis with emphasized lines in skin, resembles lichen

Scale - Elevated area of excessive exfoliation, varies in thickness, shape, and dryness and ranges in colour from white to silver

Scar- Fibrous, depth varies, colour ranges from white to red

Ulcer - Red or purplish depression ranging into dermis, caused by tissue loss