LAUSR

427 PDT has been shown to be less effective in treating EQ compared to Bowen’s disease. In the largest case series of 11 patients, complete remission was reported for three cases (27%), partial response for four cases (36%), and disease progression for four cases (36%) [6]. Two other cases of progression of EQ to invasive SCC after PDT have been reported in the literature [7, 8]. EQ, sometimes merely considered as a Bowen’s disease of the penis, may show a more aggressive course with a higher risk of invasion and metastasis. When non-surgical treatments are performed, a close follow-up of these patients would be advisable.