<prompt> ABCDE principle is used for which malignancy?SCCBCCMalignant melanomaVerrucous carcinoma  <response>: Ans. Malignant melanomaRef: Bailey Loves Surgery, 27th Ed; Page No-608MnemonicDiagnosis 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 Breslows method. Breslows method: measures the vertical distance in mm from granular cell layer to the deepest part of tumor, using a microscopic micrometer. 