Keloids have been recognized since antiquity. The term keloid was chosen based on the Greek word for crab claw ("cheloid") Keloids result from wound healing gone awry. Formation is commonly seen after invasive medical procedures; elective cosmesis (tattoos and piercings); and mundane events, such as insect bites and trauma from scratching. Symptoms can extend beyond cosmesis. One survey reported pruritus in 27% of patients and pain in 19%. Rarely, keloids have also been shown to ulcerate and develop draining sinus tracts. The most common anatomical sites for keloids include the chest, shoulders, earlobes, upper arms, and cheeks. Although keloid formation has been traditionally understood to result from indefinite collagen production, no single accepted hypothesis has been accepted to fully explain the pathological mechanism.
Medscape J Med. 2009;11(1):18 © 2009
Cite this: A Primary Care Perspective on Keloids - Medscape - Jan 20, 2009.