title: Atypical angioma serpiginosum.
abstract: Angioma serpiginosum is an uncommon, acquired vascular nevoid disorder with capillary dilation and proliferation in the papillary dermis. The eruptions are asymptomatic and characterized by grouped, erythematous to violaceous, serpiginous and punctate macules. The condition usually appears in females during adolescence on unilateral lower extremities and the buttocks. We report a rare case with a late onset and atypical distribution of lesions in a 48-year-old female patient who had groups of punctate lesions on her left foot for four to five years. Histopathological examination showed hyperkeratosis and multiple dilated and proliferated capillaries in the papillary dermis. Inflammation and extravasation of red blood cells were not found. According to the clinical and pathological findings, we established a diagnosis of angioma serpiginosum. She was treated with a pulsed dye laser, and the angiomatous lesions subsequently improved.
authors.affiliation: Department of Dermatology, Taipei Municipal Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan.
authors.forename: Ju-Hsin
authors.initials: JH
authors.lastname: Chen
authors.forename: Kuo-Hsien
authors.initials: KH
authors.lastname: Wang
authors.forename: Chung-Hong
authors.initials: CH
authors.lastname: Hu
authors.forename: Jainn-Shiun
authors.initials: JS
authors.lastname: Chiu
mesh_terms: D062109:Dermatologic Surgical Procedures; D005260:Female; D005534:Foot Diseases / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D054025:Lasers, Dye / Q000627:therapeutic use; D008875:Middle Aged; D012867:Skin / Q000098:blood supply / Q000473:pathology; D017445:Skin Diseases, Vascular / Q000175:diagnosis* / Q000601:surgery; D013684:Telangiectasis / Q000175:diagnosis* / Q000601:surgery; D016896:Treatment Outcome