Melanonychia: moles and melanoma on the nail Dr. Podlipnik Melanonychia: What It Is, Causes, and More Nail changes can reveal major systemic disease, from cirrhosis and endocarditis to melanoma., Splinter hemorrhages + fever murmur should make you think of infective endocarditis., Single Pigmented Lesions of the Nail Unit: Clinical and Histopathologic Features Pigmented Nail Lesions: When to Observe, When to Biopsy, When to Widely Excise, and When to Amputate? Journal of Hand Surgery Brown black pigmented nail bands (melanonychia) can be a sign of subungual melanoma. This case report describes a child with melanonychia mimicking melanoma caused by green slime. Presumably, the slime embedded in the