“…5 Majority of cases reported are squamous cell carcinoma, 6 over the extremities, 7 commonest region of body involved are lower limbs 40%, 30% for head & neck regions, 20% for extremities & 10% for trunk. 7 Though various unifactorial theories like Virchow's theory of chronic irritation, 12 Friedwald and Rouse cocarcinogenic theory, 13 Treves and Pack's 1 toxin theory, Ribet's theory of epithelial implantation 9 etc. have been proposed for the pathogenesis of development of malignancy in scar patients, multifactorial theory have been propounded for malignant transformation, which proposes the combination of above theories as pathogenesis.…”