Severe angiokeratoma corporis circumscriptum naeviforme: Iatrogene aggravation after the employment of different laser systems

A 9-year-old female patient with 9-year history of asymptomatic papular lesions on feet, limbt high, hip and chin is reported. The clinical and histopathological findings were consistent with a diagnosis of angiokeratoma corporis circumscriptum naeviforme. Repeated treatment with a 532 nm KTP (frequency doubled Nd:YAG) laser had no positive effect. During therapy, similar skin lesions developed on the shoulder, neck, and face. Consecutively, a flashlamp-pumped pulsed dye laser and a carbon dioxid laser were used, both also leading to aggravation. To our knowledge, this is the first report of angiokeratoma severe…