An eroded plaque on the arm - histology showed an amelanotic melanoma (AM-patient4)
Keywords: Arm, Clinical image, European ethnicity, Female, Genodermatosis, Lesion (cancerous), Pink periphery, Skin cancer, Ulcerated amelanotic melanoma, Ulcerated plaque, Ulceration
Amelanotic melanoma is a form of melanoma in which the malignant cells have little to no pigment. The term 'amelanotic' is often used to indicate lesions that are only partially devoid of pigment while truly amelanotic melanoma where lesions lack all pigment is rare.
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