pediatric melanonychia

Melanonychia: Clues for Diagnosis and the Importance of Histology
Melanonychia
by Edita Newton, MD on
Just as pigmented lesions on the skin can vary widely from freckles to lentigines to nevi to melanoma, similar pigmented lesions can be seen in nails. Melanonychia, brown or black pigmentation in the nail plate, can frequently present a diagnostic challenge for the dermatologist. While most causes of melanonychia are benign, it is important to recognize when the diagnosis is malignant or uncerta …