Surgery Squamous cell carcinoma can arise from-a) Long standing venous ulcersb) Chronic lupus vulgarisc) Rodent ulcerd) All of the above A ac B a C ab D bc 💡 Explanation Squamous cell carcinoma can arise from-a) Long standing venous ulcersb) Chronic lupus vulgarisc) Rodent ulcerd) All of the above ✓ Correct Answer: C. ab