Keloid

Keloid, also known as keloid disorder and keloidal scar,is the formation of a type of scar which, depending on its maturity, is composed mainly of either type III (early) or type I (late) collagen. It is a result of an overgrowth of granulation tissue (collagen type 3) at the site of a healed skin injury which is then slowly replaced by collagen type 1. Keloids are firm, rubbery lesions or shiny, fibrous nodules, and can vary from pink to the color of the person's skin or red to dark brown in color. A keloid scar is benign and not contagious, but sometimes accompanied by severe itchiness, pain, and changes in texture. In severe cases, it can affect movement of skin. Keloid scars are seen 15 times more frequently in people of sub-Saharan African descent than in people of European descent.Small size keloid papulesKeloid Nodules (1–2 cm in diameter) and a keloid tumor >2 cm. in diameter.Two linear keloidsPatch of Flat KeloidButterfly type keloid.Guttate KeloidA very painful, hyper-inflammatory keloid of the chest wall.Superficially Spreading KeloidPedunculated Keloid that grows with a stalk, much like a mushroomBulky keloid.Massive KeloidsScalp Keloid in Occipital AreaEarlobe KeloidMassive Earlobe Keloid forming after repeated surgeries.Posterior auricular Keloid triggered by otoplasty surgery.Facial Nodular Keloids in African American Male,Bulky Keloid of the NeckA very painful, inflammatory keloid of the chest wall, worsened with surgery.Flat, Superficially Spreading Keloid in Upper Arm Area.Pedunculated Umblical Keloid.Massive, Multi-Nodular Conglomerate of Pubic Area, worsened with surgery.Massive keloid in the sole of foot in a patient with massive keloids elsewhere.Pay attention to the well healed midline scar of surgery, and the keloid forming in the navel area following piercing.Keloid formation triggered by tattooing Keloid, also known as keloid disorder and keloidal scar,is the formation of a type of scar which, depending on its maturity, is composed mainly of either type III (early) or type I (late) collagen. It is a result of an overgrowth of granulation tissue (collagen type 3) at the site of a healed skin injury which is then slowly replaced by collagen type 1. Keloids are firm, rubbery lesions or shiny, fibrous nodules, and can vary from pink to the color of the person's skin or red to dark brown in color. A keloid scar is benign and not contagious, but sometimes accompanied by severe itchiness, pain, and changes in texture. In severe cases, it can affect movement of skin. Keloid scars are seen 15 times more frequently in people of sub-Saharan African descent than in people of European descent. Keloids should not be confused with hypertrophic scars, which are raised scars that do not grow beyond the boundaries of the original wound. Keloids expand in claw-like growths over normal skin. They have the capability to hurt with a needle-like pain or to itch, the degree of sensation varying from person to person. If the keloid becomes infected, it may ulcerate. Removing the scar is one treatment option; however, it may result in more severe consequences: the probability that the resulting surgery scar will also become a keloid is high, usually greater than 50%. Laser treatment has also been used with varying degrees of success. Keloids form within scar tissue. Collagen, used in wound repair, tends to overgrow in this area, sometimes producing a lump many times larger than that of the original scar. They can also range in color from pink to red. Although they usually occur at the site of an injury, keloids can also arise spontaneously. They can occur at the site of a piercing and even from something as simple as a pimple or scratch. They can occur as a result of severe acne or chickenpox scarring, infection at a wound site, repeated trauma to an area, excessive skin tension during wound closure or a foreign body in a wound. Keloids can sometimes be sensitive to chlorine. Keloid scars can grow, if they appear at a younger age, because the body is still growing.