A keloid is an abnormal form of scarring (a fibroproliferative disorder); it is not associated with maturation, regression, or contraction.

• Excessive scar formation beyong borders of original wound

Risk factors:

• History or prior keloid
• darker skin types

PC

• Erythematous, smooth and shiny elavated scar with overhanging edge
• Slow growing
• Hx of inciting event - body piercing, surgery, insect bite, vaccination
• common sites (in order of decreasing frequency): sternum, shoulder, neck, face, extensor surface of limbs, trunk

Investigations

*Usually a clinical diagnosis

• Consider a biopsy if diagnosis in doubt (?dermatofibrosarcoma)

Management

• early keloids may be treated with intra-lesional steroids e.g. triamcinolone
• excision is sometimes required but careful consideration needs to given to the potential to create further keloid scarring