Acquired Port‐wine Stains

Abstract

Although some differences exist, acquired port-wine stains are similar to congenital port-wine stains in their clinical morphology, histologic findings, and response to laser treatment.

A Comparison of Acquired Port-wine Stain with Congenital Port-wine Stain Using an Image Analyzer

“…But in these articles, only small numbers of patients were studied and the therapeutic results were not same in all patients with APWS. As for our experience of long pulsed dye laser in APWS therapy, the result was rather similar to that of Dinehart et al 1 . The response to PDL in patients with APWS was controversial, so we undertook this study to find out whether there are some differences of histopathologic features of the two entities or not.…”

“…Many cases of acquired PWS have since been reported [1][2][3]5,18 but there has been little discussion about treatment 1,2 . There have been only two reports investigating the efficacy of laser therapy in APWS 1,2 . Dinehart et al 1 found that APWS had generally a faster response to the PDL treatment than CPWS, however, they could not explain the exact mechanism because some patients responded rather poorly to laser treatment.…”

“…In contrast to well-known congenital port-wine stain (CPWS), acquired port-wine stain (APWS) is rare and its onset is generally after one year of age. The exact patho-mechanism of APWS is unknown, but trauma 1-3 hormonal change 1 , medication 4 , and solar damage 5,6 may contribute to its development. Pulsed dye laser (PDL) therapy is regarded as the treatment of choice in PWS.…”

“…Pulsed dye laser (PDL) therapy is regarded as the treatment of choice in PWS. Some scientific researchers reported that APWS patients responded more favorably to PDL therapy, and required fewer treatments than those with CPWS 1,2 . They proposed telangiectatic nature, relatively sparse number and superficial location of ectatic vessels as a cause of ; however, at the same time, poor results in several patients were also reported by some authors 1,2 .…”

“…Some scientific researchers reported that APWS patients responded more favorably to PDL therapy, and required fewer treatments than those with CPWS 1,2 . They proposed telangiectatic nature, relatively sparse number and superficial location of ectatic vessels as a cause of ; however, at the same time, poor results in several patients were also reported by some authors 1,2 . Generally, pathological parameters like vessel diameter, depth, and luminal erythrocytes contents were provided as evidence that could explain the difference in therapeutic outcome [7][8][9] .…”