Een man met rare genitale wratten

A 36-year-old man came to the outpatient dermatology department with asymptomatic, skin-coloured to white/yellow, firm papules on his prepuce. Over the last 10 years he had received different treatments for condylomata accuminata, with no effect. After shave excision, the diagnosis of idiopathic calcinosis cutis was made.

Conflict of interest and financial support: none declared.