From the Cosmetic Dermatology Archives

Matrix Biopsy of Longitudinal Melanonychia and Longitudinal Erythronychia: A Step-by-Step Approach

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Longitudinal melanonychia and longitudinal erythronychia are presentations that may indicate underlying malignancy. Biopsy is commonly required. This manuscript provides an overview to approaching these problems, a guide to surgery including several biopsy techniques, and tips to ensure adequate tissue sampling while minimizing postoperative complications.


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