scar


Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Idioms, Wikipedia.

scar,

fibrous connective tissueconnective tissue,
supportive tissue widely distributed in the body, characterized by large amounts of intercellular substance and relatively few cells. The intercellular material, or matrix, is produced by the cells and gives the tissue its particular character.
..... Click the link for more information.
 that forms at the site of injury or disease in any tissue of the body. Scar tissue may replace injured skin and underlying muscle, damaged heart muscle, or diseased areas of internal organs such as the liver. Dense and thick, it is usually paler than the surrounding tissue because it is poorly supplied with blood, and although it structurally replaces destroyed tissue, it cannot perform the functions of the missing tissue. Scar tissue may therefore limit the range of muscle movement or prevent proper circulation of fluids when affecting the lymphatic or circulatory system. Extensively scarred tissue may lose its ability to function normally.

Scar

 

the end result of the development of connective tissue at the site of the healing of a wound or ulcer. The timely surgical treatment of an incised wound with smooth margins leaves a soft and sometimes barely noticeable linear scar. Large wounds that suppurate and heal by second intention form granulations and subsequently epithelize, resulting in the formation of broad scars that are attached to underlying tissues.

Excessive scar tissue that is elevated above the skin surface is called a keloid. Extensive scars formed after burns or the prolonged healing of suppurative wounds in the area of extremity joints or on the neck result in a limitation of mobility, or contracture; these scars require plastic surgery. Scars that develop after the healing of gastric or duodenal ulcers often lead to the deformation of the stomach and duodenum, the disruption of evacuation from the stomach, and the development of pyloric stenosis.

scar

[skär]
(geology)
A steep, rocky eminence, such as a cliff or precipice, where bare rock is well exposed. Also known as scaur; scaw.
(medicine)
A permanent mark on the skin or other tissue, formed from connective-tissue replacement of tissue destroyed by a wound or disease process.

scar

1
1. any mark left on the skin or other tissue following the healing of a wound
2. the mark on a plant indicating the former point of attachment of a part, esp the attachment of a leaf to a stem

scar

2
1. an irregular enlongated trench-like feature on a land surface that often exposes bedrock
2. a similar formation in a river or sea
References in periodicals archive ?
Combining AFR with other devices can improve results, depending on the type of scar, said Dr.
Jarod Legsdin started PMM in 2012 and has mastered the delicate operations of shortening, crowning and rethreading the SCAR for reliable operation (particularly when suppressed).
Various other skin problems, such as acne, burns, post-surgical marks and stretch marks, due to pregnancy or changes in body weight also lead to scar formation, which is boosting the demand of scar treatment products and therapies.
Scars on the knees and shoulders can appear stretched or widened with the healing process occurring over movable joints.
Clinical diagnosis of scar endometriosis can be made by careful history and physical examination.
1 Scar endometriosis is an uncommon but well-described condition.
relies on an advanced silicone technology engineered to simulate the natural barrier function of healthy skin, hydrating scar tissue to soften the scar, and shrinking, flattening and fading it.
The report analyses the North America scar treatment market in terms of market value (US$ Mn) on the basis of treatment, product type, distribution channel, and country.
To investigate the mechanisms of pressure therapy on hypertrophic scar maturation, it is important for both surgeons and occupational therapists to identify the key molecule which promotes or inhibits the hypertrophic scar formation.
We retrospectively identified patients with a diagnosis of radial scar in an NCB who underwent surgical excision at our institution.
Patients are most likely to be satisfied with their outcome (even if they have only marginal results) if the physician can help them understand the unpredictability of acne scar therapy and develop realistic expectations for improvement.
Symptomatic vocal fold scar alters phonation by interfering with the mucosal wave.