[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

Nevus flammeus adquirido iatrogénico / Acquired iatrogenic naevus flammeus

Presentamos un caso de nevus flammeus adquirido. La lesión apareció tras manipulación quirúrgica de la zona afectada. Creemos que el trauma quirúrgico podría haber originado algún tipo de daño en la inervación simpática de los vasos cutáneos superficiales llevando a ectasia vascular progresiva