AKT-1250

A 9-year-old girl visits the clinic with her father. She sustained a minor injury to her knee while playing soccer and her father is worried that it might be infected. The injury occurred 3 weeks ago and was described as a scrape. Upon examination, you observe a well-healed superficial abrasion on the skin, with several small, raised pink bumps with a central dimple surrounding the scrape. The skin around the wound is not red and feels cool to the touch. Additionally, you notice a cluster of similar bumps on her back. Her father reports that these bumps have been present for approximately 7 months.

What is the probable diagnosis?