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A hypertrophic scar is a cutaneous condition characterized by deposits of excessive amounts of collagen which gives rise to a raised scar, but not to the degree observed with keloids. [1] Like keloids, they form most often at the sites of pimples, body piercings, cuts and burns. They often contain nerves and blood vessels.
Keloid, also known as keloid disorder and keloidal scar, [1] 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.
This process of tissue repair is a complex one, with tight regulation of extracellular matrix (ECM) synthesis and degradation ensuring maintenance of normal tissue architecture. However, the entire process, although necessary, can lead to a progressive irreversible fibrotic response if tissue injury is severe or repetitive, or if the wound ...
One study's definition is a total range of motion (ROM) <90 degrees constitutes AF, another definition is flexion contracture >10 degrees, or inability to flex the knee >100 degrees. AF is a diagnosis of exclusion; before making a final diagnosis of arthrofibrosis, other causes of stiffness following knee replacement should be excluded (ex ...
Scars form differently based on the location of the injury on the body and the age of the person who was injured. [citation needed] The worse the initial damage is, the worse the scar will generally be. [citation needed] Skin scars occur when the dermis (the deep, thick layer of skin) is damaged.
Lichenification: Epidermal thickening characterized by visible and palpable thickening of the skin with accentuated skin markings [1] Erosion : An erosion is a discontinuity of the skin exhibiting incomplete loss of the epidermis , [ 32 ] a lesion that is moist, circumscribed, and usually depressed.
It often appears as a painless raised area of skin that may be shiny with small blood vessels running over it or may present as a raised area with an ulcer. [1] Squamous-cell skin cancer is more likely to spread. [5] It usually presents as a hard lump with a scaly top but may also form an ulcer. [2] Melanomas are the most aggressive.
The dermis contains two vascular networks that run parallel to the skin surface—one superficial and one deep plexus—which are connected by vertical communicating vessels. [8] [11] The function of blood vessels within the dermis is fourfold: to supply nutrition, to regulate temperature, to modulate inflammation, and to participate in wound ...