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Author: Adjunct A/Prof Patrick Emanuel, Dermatopathologist, Clínica Ricardo Palma, Lima, Peru. DermNet NZ Editor in Chief: Adjunct A/Prof Amanda Oakley. Copy edited by Gus Mitchell. September 2018.
Verrucous haemangioma presents as blue-red, vascular papules, plaques or nodules, which later become warty in appearance. These lesions do not resolve spontaneously and have a tendency to recur after excision if margins are inadequate.
In verrucous haemangioma, the histopathology shows irregular papillomatosis, acanthosis and hyperkeratosis of the epidermis. The dermis shows multiple, thin-walled, dilated blood-filled spaces. Intravascular thrombosis with recanalisation and hemorrhage can be seen (figures 1–5).
Vascular markers can highlight the extent of the lesion (CD31, CD34).
Other conditions that should be considered include:
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