Lentigo maligna melanoma: Pictures, symptoms, and outlook Community perceptions of suspicious pigmented skin lesions: are they accurate when compared to general practitioners? ScienceDirect Hutchinson didn't just spot signshe defined them. From your nose to your nerves, his legacy lives on! Can you remember any other Hutchinson references in medicine? Share in the comments below. The Hutchinson Sign A dark streak on your nail isn't always harmless. In younger people, it can have a benign etiology like trauma, fungus, or normal pigmentation. But in older adults, Lentigo maligna melanoma: Pictures, symptoms, and outlook