Melanoma under nail plate. A case of malignant melanoma after injuries.

DOI

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Other Title
  • 爪甲下黒色腫　外傷後に生じた悪性黒色腫の１例

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Description

This report deals with a case of malignant melanoma following injury in a 30-year-old female. She dropped a steel file on her rt. great toe to develop subungual hematoma at the age of 25. After nail avulsion, a granulomatous tumor was observed on the nail bed. Histpathologically, the tumor consisted of round or spindle shaped cells and had a little pigments. Immunohistochemically, the tumor was partially positive for S-100 protein and HMB-45, and was diagnosed acral lentiginous melanoma (ALM) . Amputation of rt. great toe followed by groin dissection were performed. Postoperative diagnosis was ALM Stage III (pT4 N0 M0).

Journal

  • Skin Cancer

    Skin Cancer 11 (2), 196-198, 1996

    The Japanese Skin Cancer Society

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