Primary Amelanotic Melanoma of the Palm

Kayoko Matsunaga, Katsuhiko Sakai, Mitsuyoshi Hiramatsu, Kisaku Yazaki, Hiroshi Ueda

研究成果: Article査読

抄録

In a 48-year-old woman with primary amelanotic melanoma of the left palm resembling tylosis clinically and nevus of large spindle and/or epithelioid cells pathologically, electron microscopy showed stage III melanosomes in the cytoplasm of the tumor cells. Histologically, the tumor cells formed alveolar structure or nests at the dermo-epidermal junction and showed pagetoid phenomenon to the upper epidermis and to the lateral or radial individual cell extension. Most of the tumor cells lacked melanin pigment on light microscope. A large number of giant cells, telangiectasis and edema of the dermal papilla made it difficult to differentiate this melanoma from nevus of large spindle and/or epithelioid cells. Differentiation between these two melanocytic lesions were discussed on the basis of the related literature.

本文言語English
ページ(範囲)791-795
ページ数5
ジャーナルNishi Nihon Hifuka
42
5
DOI
出版ステータスPublished - 1980

All Science Journal Classification (ASJC) codes

  • 皮膚病学

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