This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
A tumour arising in a burns scar is likely to be 
Select and explain. 
A. Basal cell carcinoma, B. Squamous cell carcinoma, C. Malignant melanoma, D. Fibrosarcoma
B: Squamous cell carcinoma
Answer: B: Squamous cell carcinoma 
Explanation: SCC is a malignant tumour of keratinising cells of the epidermis or its appendagesSCC is the second most common form of skin cancer (after BCC)It is strongly-related to cumulative sun exposure and damage SCC is also associated with chronic inflammation (chronic sinus tracts, pre-existing scars, osteomyelitis, burns, vaccination points) and immunosuppression. When an SCC appears in a scar it is known as a Marjolin's ulcer.Ref: Bailey and Love, 27e, page: 605