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Journal of the American Academy of Dermatology
Volume 58, n° 2
pages 323-326 (février 2008)
Doi : 10.1016/j.jaad.2007.08.031
Case Reports

Melanoma and squamous cell carcinoma on different nails of the same hand
 

Michael Harwood, MD, Gladys H. Telang, MD, Leslie Robinson-Bostom, MD, Nathaniel Jellinek, MD
Department of Dermatology, Brown Medical School, Providence, Rhode Island 

Reprint requests: Nathaniel Jellinek, MD, 593 Eddy St, APC 10, Providence, RI 02903.
Abstract

Nail dyschromia, including melanonychia and erythronychia, encompasses a wide range of possible diagnoses. While the majority of these lesions are benign, malignancies of the nail unit represent a sinister, and potentially life-threatening, cause of nail dyschromia. Unfamiliarity with tumors of the nail apparatus can lead to a delay in diagnosis. A case is presented of a patient with two separate and concurrent malignant neoplasms of the nail unit, on different nails on the same hand, each featuring an unusual clinical presentation: amelanotic melanoma presenting as longitudinal erythronychia and squamous cell carcinoma in situ presenting as longitudinal melanonychia. This presentation underscores the need for a low threshold for biopsy in the presence of nail dyschromia of uncertain etiology.

The full text of this article is available in PDF format.

 Funding sources: None.
 Conflicts of interest: None declared.

  De Berker DAR. Tumours of the nail apparatus. Oral presentation at the annual meeting of the Council for Nail Disorders, Washington, DC, February 2007.


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