Doctor taking a biopsy of the fingernail of a 35 year old Hispanic male patient with longitudinal (lengthwise) melanonychia. Melanonychia is a nail discolouration caused by the pigment melanin. It may be the equivalent of a mole on the skin, be due to infection or injury, or a sign of disease such as skin cancer. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / RICHARD USATINE MD |
Bildgröße: | 3413 px × 2560 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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