Traumatic tissue defect reaching deep into papillary dermis, usually with sharp borders.
Size: mm to cm.
Depending on etiology, usually localized or solitary, often linear.
May develop with crusts or necrosis.
Heals with scarring.
Associated with papules, nodules, erosions and superinfection.
Comment / Explanation
Excoriations are caused by scratching due to severe itching . Excoriations may provide access for pyogenic micro-organisms and the formation of crusts, pustules or cellulitis.
Prurigo simplex, prurigo nodularis, artefact dermatitis, dystrophic epidermolysis bullosa.
Tissue removed by trauma, usually scratching.