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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.
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Fibrosis, also known as fibrotic scarring, is the development of fibrous connective tissue in response to an injury. Fibrosis can be a normal connective tissue deposition or excessive tissue deposition caused by a disease.
Thick, hyalinised collagen fibres are characteristic of this aberrant healing process. H&E stain. Histologically , keloids are fibrotic tumors characterized by a collection of atypical fibroblasts with excessive deposition of extracellular matrix components, especially collagen , fibronectin , elastin , and proteoglycans .
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.
Scar sarcoid (sarcoidosis in scars) Sea-blue histiocytosis; Subcutaneous granuloma annulare (deep granuloma annulare, pseudorheumatoid nodule) Subcutaneous sarcoidosis (Darier–Roussy disease, Darier–Roussy sarcoid) Systemic sarcoidosis; Ulcerative sarcoidosis; Xanthoma disseminatum (disseminated xanthosiderohistiocytosis, Montgomery syndrome)
The temporary raised skin on the site of a properly delivered intradermal (ID) injection is also called a welt, with the ID injection process itself frequently referred to as simply "raising a wheal" in medical texts. [10] Welts: Welts occur as a result of blunt force being applied to the body with elongated objects without sharp edges.
Inferior left ventricle wall scar, short axis echocardiography view Myocardial scarring is the accumulation of fibrous tissue resulting after some form of trauma to the cardiac tissue. [ 1 ] [ 2 ] Fibrosis is the formation of excess tissue in replacement of necrotic or extensively damaged tissue.