Hypopigmented Scars



Hypopigmented Scars


Rebecca Baxt

Euphemia W. Mu



BACKGROUND

Scars or cicatrices are the end result of wound healing following disease or trauma.1 These skin defects exhibit great variation in characteristics, such as pigmentation, thickness, pliability, and vascularity.2 Hypopigmented scars are among the most common (Figure 2.3.1). Studies have documented the psychosocial impact hypopigmented scars can have on patients including distress and social isolation.3,4 As no 2 hypopigmented scars are exactly alike, the study and treatment of these scars have proved challenging. This chapter will discuss the etiology, pathogenesis, and treatment of hypopigmented scars.


PRESENTATION

Patients present with a complaint of white or light marks or scars after injury, a skin condition, or a treatment. Patients complain of an area of loss of pigment to the skin. In hypopigmented scars, these areas are usually associated with a textural change, such as overgrowth of tissue or atrophy.




PATHOGENESIS

Hypopigmented scars result from cutaneous repair after injury, which can occur from numerous different etiologies, including trauma, burn, post surgery, or post laser treatment. Following damage to the skin, wound healing occurs through well-documented vascular,
inflammatory, proliferative, and tissue remodeling phases.5 Scar tissue forms during the final phase, which can last for several months.1 During this stage, underlying granulation tissue and vascular structures regress and provisional extracellular matrix is remodeled into the final scar tissue. Many of these scars heal with decreased pigmentation.1,6

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Jun 29, 2020 | Posted by in Dermatology | Comments Off on Hypopigmented Scars
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