Doughnut wart

Male patient 26 year old, presented with annular verrucous lesions, with history of multiple cryotherapy sessions.

Occasionally, aggressive cryotherapy gives rise to a doughnut wart due to extensive blistering , with central clearing and annular recurrence. It may also occur with cantharidin therapy.

1. Immunotherapy

2. Ablative carbon dioxide or erbium yttrium-argon-garnet laser