ABSTRACT
Malignant melanoma (MM) is the most malignant skin cancer whose classical clinical types include lentigo maligna (LM), superficial spreading melanoma (SSM), nodular (NM) and acral lentiginous melanoma (ALM). Superficial spreading melanomas constitute approximately 70% of melanomas. For the early diagnosis of MM, the ABCD rule and the “ugly duckling” sign are the most utilized criteria. We present a 72-year-old man with a SMM which was located among numerous pigmented and non-pigmented seborrheic keratosis (SK). We also propose a new mnemonic to describe camouflaged-melanomas among pigmented SKs, as well as other benign non-melanocytic lesions through our case.
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