A 30-year-old man presented with a 6-year history of eroded, orange-red plaques with a subtle nodular edge in the bilateral axilla, groin and perianal skin leading to pain, scarring and limited shoulder extension. Click https://www.wileyhealthlearning.com/#/online-courses/9b96cb7b-9903-4244-b741-3690a7e5b398 for the corresponding questions to this CME article.
© 2022 British Association of Dermatologists.