Tratamiento con Pulsed Dye Laser de mancha de vino oporto: seguimiento a 10 años / Treatment with Pulsed Dye Laser of wine stain Porto: 10-year follow-up

Las manchas de vino de oporto son un tipo de malformación capilar que afecta del 0,3 al 0,5% de la población. Están presentes desde el nacimiento como máculas o placas eritematosas en la piel o mucosas. Sin tratamiento, las lesiones tienden a oscurecerse con la edad, tornándose rojizas o color púrpura, y pueden desarrollar engrosamiento nodular o un granuloma piógeno asociado. Los tratamientos con láser proporcionan mejoría mediante la destrucción selectiva de la vasculatura. Se han utilizado una variedad de láseres vasculares selectivos, pero el tratamiento de primera elección es el láser de colorante pulsado. Los mejores resultados se obtienen cuando el tratamiento es instaurado tempranamente. (AU)

Port wine stains are a type of vascular malformation that affects 0.3% to 0.5% of the population. They are present from birth as erythematous macules or plaques on the skin or mucous membranes. Without treatment, these lesions tend to darken with age, becoming reddish or purple and may develop nodular thickening or an associated pyogenic granuloma. Laser treatments might provide an improvement by selective destruction of the vasculature. A variety of selective vascular lásers may be employed, with the pulsed dye laser as the gold standard treatment. Better results are obtained when the treatment is established early. (AU)

[Acquired port wine stain: report of two cases]

Acquired port-wine stain is a rare vascular lesion that mimics a congenital port-wine stain clinically and histologically, but is acquired after birth. A survey on more than 60 reported cases in the literature reveals that most of these cases are idiopathic, but some of the cases developed after physical or mechanical trauma, hormonal changes, chronic sun exposure, and medications [OCP, isotretinoin, etc]. The pathogenesis of acquired port-wine stain like its congenital counterpart is obscure, but is thought to be related to a functional deficit of perivascular sympathetic neural control after mechanical trauma or other possible factors. Laser is the first choice of treatment in both congenital and acquired port-wine stains. We, herein report two rare cases of acquired port-wine stains. Both of the cases presented at the age of 15 years. One of them was idiopathic and the other one developed after a mild electrical bum on her hand. The histopathological findings of their biopsy specimens were compatible with the diagnosis of port-wine stain