Isolated plexiform neurofibroma mimicking a vascular lesion

Plexiform neurofibromas are benign tumors originating from peripheral nerve sheaths,generally associated with neurofibromatosis type 1 (nf1). they are diffuse,painful and sometimes locally invasive,generating cosmetic problems. this report discusses an adolescent patient who presented with an isolated,giant plexiform neurofibroma on her leg that was confused with a vascular lesion due to its clinical aspects. once the diagnosis was confirmed by surgical biopsy,excision of the lesion was performed with improvement of the symptoms. © 2016 by anais brasileiros de dermatologia.