Marjolin ulcer
.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
Ca in marjolin's is squamous cell ca
Chronic venous insufficiency
Basal cell carcinoma
arise from base of the ulcer
General surgery