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Utility of Dermoscopy before and after Laser Irradiation in Port Wine Stains
( Makiko Shirakawa ),( Toshiyuki Ozawa ),( Satoki Wakami ),( Masamitsu Ishii ),( Teruichi Harada ) 대한피부과학회 2012 Annals of Dermatology Vol.24 No.1
Background: Port wine stains (PWSs) are commonly treated with pulsed dye laser (PDL) as a standard therapy. However, it is not easy to predict the minimal effective dose in the first treatment session. Objective: The aim of this study was to assess whether dermoscopic findings before and after laser irradiation corresponded with the clinical improvement of PWS in patients undergoing PDL therapy. Methods: Seven untreated PWSs in 6 patients (a male and 5 females), who presented to our hospital between May 2008 to January 2010, were assessed in this study. The mean age was 36.3 years, ranging from 14 to 57 years. A PDL with a wavelength of 585 nm and a spot size of 7 mm was used. Before and after test irradiation, patients underwent dermoscopy and clinical photography, and we assessed whether the dermoscopic findings corresponded with clinical improvement after 3 months. Results: There were no obvious differences observed in the clinical photographs between each test level immediately after irradiation. However, dermoscopic photographs showed differences as the irradiated energy increased. These changes corresponded to the clinical improvement after 3 months. Conclusion: Our study indicates that the minimal effective fluence can be predicted by observing dermoscopic change immediately after irradiation. We think that examining the dermoscopic findings immediately after irradiation allows the laser surgeon to predict the minimal effective fluence and this prevents adverse effects of the skin. (Ann Dermatol 24(1) 7∼10, 2012)
Tsuruta, Daisuke,Hayashi, Akihide,Kobayashi, Hiromi,Nakagawa, Koichi,Furukawa, Masayoshi,Ishii, Masamitsu S. Karger AG 2005 Dermatology Vol.210 No.4
<P>We describe 4 cases of pseudocyst of the scalp, which still is only being described in the Japanese literature. The tumor is characterized as follows: localized between the top and the forehead area of the scalp, it first appears as a solitary reddish, painful small nodule or papule; it then gradually increases in size, protruding into a dome-shaped mass, and becomes associated with alopecia limited to the lesion area. This report describes typical cases of pseudocyst of the scalp, reviews the reported Japanese cases and introduces this tumor to western dermatology.</P><P>Copyright © 2005 S. Karger AG, Basel</P>