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
Marjolin ulcer
assistant
The correct answer is  .marjolin&;s ulcer is the name given to a malignancy ( usually a squamous cell carcinoma ) which arise in any long standing wound or a scar mostly scar of an old burn it grows slowly as it is avascular it is painless