<prompt> Marjolins ulcer is aMalignant ulcer found on the scar of burnMalignant ulcer found on infected footTrophic ulcerMeleneys gangrene  <response>: Marjolins ulcer is well-differentiated squamous cell carcinoma which occurs in chronic scars like burn scar, scar of venous ulcer. It is slow growing, locally malignant disease. Reference : SRBs Manual of Surgery, 6th Edition, page no 283. 