Shiny/velvety, raised, slightly white and scaly, solitary lesion (plaque), 33 mm in diameter, with no subjective symptoms (pain, itch, etc.) could be clinical findings of several diseases, most likely Lichen planus, Psoriasis, or Candidiasis. However, diseases like Bowen disease, confluent Condylomata acuminata (genital warts), Lichen scerosus, etc. have to be considered.
For the moment, keep lesion clean (soap and water), and dry (pat dry to avoid irritation). It is not recommended to start with specific dermatological / venereological treatment before clinical evaluation and laboratory tests (necessary for diagnosis conformation) are performed. Therefore, try to schedule an appointment with your dermatologist this or next week.
In the meantime, capture changes of lesion(s) by camera. Seeing those pictures will help your physician understand development/progression of skin/mucosal changes.
Yours in optimal health,
Dr. Jasmina Jankicevic
I am also cirumcised. I just thought I'd add that in case it affects anything.
Also,
I've just realised that it is slightly raised. It's not so much of a patch. It looks like more like a raised area (like a bump).