system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 38-year-old man presents to the outpatient clinic for an annual employee health checkup. He does not have any complaints at the moment except for skin changes, as seen in the following image. He denies any history of trauma. His medical history is insignificant. His family history is negative for any skin disorders or autoimmune disease. He is a non-smoker and does not drink alcohol. Which of the following is the most likely mechanism for this presentation?
assistant
Autoreactive T cells against melanocytes