Clinical Study

Effects of the Combined PDL/Nd:YAG Laser on Surgical Scars: Vascularity and Collagen Changes Evaluated by In Vivo Confocal Microscopy

Figure 5

Effects of a single combined 585/1064 nm laser treatment on the blood vessels and collagen fibers (abdomen). The untreated areas ((a), (b), (c), and (d)) and treated areas ((e), (f), (g), and (h)) are indicated. Control area: the dermatoscopic picture revealed high vascularity in the scar tissue ((a) Bar = 92.96 μm). The RCM picture of the scar and its surroundings indicated that the scar is only slightly depressed ((b) Bar = 132.59 μm); there are numerous, parallel collagen fibers with numerous dilated vessels (arrows) among them (c) and numerous parallel collagen fibers ((d) Bar = 132.59 μm). Treated area: the dermatoscopic picture shows low vascularity in the scar tissue (e). The RCM picture of the scar and its surroundings demonstrated that the scar is depressed relative to the normal skin ((f) Bar = 70.10 μm); there were collagen fibers regular and elongated and a few narrow vessels (arrows) among them ((g) Bar = 138.68 μm) and regular and elongated collagen fibers ((h) Bar = 129.54 μm).
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(a)
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(b)
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(c)
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(d)
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(e)
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(f)
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(g)
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(h)