This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neoplasia, Subject name: Surgery
[{'content': 'ABCDE principle is used for which malignancy? \nSelect and explain. \nA. SCC, B. BCC, C. Malignant melanoma, D. Verrucous carcinoma', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. Malignant melanoma(Ref: Bailey & Love's Surgery, 27th Ed; Page No-608)MnemonicDiagnosis of malignant melanoma is based on characteristics of: ABCDEAsymmetrical pigmented nodule.Border irregularity: Nodule shows scallops and notches.Color variability: This is very striking.Diameter: Size >5 mm.Elevation irregularity.Excise all doubtful lesions for histopathological examination. Histological grading using Breslow's method. Breslow's method: measures the vertical distance (in mm) from granular cell layer to the deepest part of tumor, using a microscopic micrometer.", 'role': 'assistant'}]