Nail Apparatus Nevus (Subungual Nevus, Nail Matrix Nevus)


Nail nevus is a benign melanocytic tumor that involves any part of the nail apparatus [1–8]. Most cases involve the nail matrix, and rare cases involve the nail bed and/or the nail lateral folds. Extremely rarely a blue nevus, which corresponds to a heavily pigmented, exclusively dermal melanocytic tumor, involves the nail apparatus.


Nail Plate Melanocytic Nevus Longitudinal Band Melanocytic Tumor Blue Nevus 
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