What are keloids and hypertrophic scars? A keloid scar is a firm, smooth, hard growth that occurs as a result of excessive scar formation. Keloids occur after skin injury; rarely, keloids can occur spontaneously without any significant preceding skin injury.

2023年8月8日 · Hypertrophic scars and keloids are both raised, firm scars formed from excess fibrinogen production and collagen during healing. They can both be symptomatic, most commonly, pruritic but can also be painful and cause movement restrictions and cosmetic disfigurement. [2]

2022年12月20日 · Hypertrophic scars and keloids both form due to excess collagen during wound healing. But hypertrophic scars stay within the confines of the wound, while keloids can grow beyond.

Hypertrophic and keloid scars show distinct clinical behaviour. The bottom graph illustrates the differential cellular and matrix arrangement of hypertrophic and keloid scars, together with their contrary biological behaviour.

2024年5月1日 · This topic will discuss the pathogenesis, clinical manifestations, management, and prevention of hypertrophic scars and keloids. Hypertrophic scars and keloids following burn injuries are discussed separately. Laser treatment of keloids is also discussed separately.

2021年6月1日 · With hypertrophic scars, the extra connective tissue that forms within the original wound stays within that area. With keloid scars, the extra connective tissue that forms extends beyond the original wound area. This and other differences between these two raised scars are shown in the table. Extends beyond wound area. Can grow very large.

Keloid and hypertrophic scars are a result of aberrant wound healing responses within the reticular dermis. They are thought to be secondary to the formation of a disorganized...

Hypertrophic scars and keloids are caused by excessive tissue response to dermal injury due to local fibroblast proliferation and collagen overproduction. This response occurs because of pathologic wound healing due to dysregulation in the inflammatory, proliferative, and/or remodeling phase.

Keloids and hypertrophic scars located at most sites are primarily of cosmetic concern; however, some keloids or hypertrophic scars can cause contractures, which may result in loss of...

2024年7月23日 · Hypertrophic and keloid scars are skin injuries deep enough to impact the dermal layer. They may appear following surgery, burns, bites from insects, tattoos, chickenpox or acne, and piercings. The specific mechanism of formation of these scar formations is unknown.