<prompt> The most common malignancy found in Marjolin;s ulcer isBasal cell carcinomaSquamous cell carcinomaMalignant fibrous histiocytomaNeutrophic malignant melanoma  <response>: Marjolins Ulcer Low grade SCC, which develops on a chronic benign ulcer or a long standing scar tissue Arises from the edge of the ulcer. Marjolins ulcer may develop in Post burn scar Long standing venous ulcer Chronic ulcer due to trauma. Chronically discharging osteomyelitis sinus Post - radiation ulcer Ref: schwazs principle of surgery 10th edition Pgno :259 