Open Access

A report of amelanotic malignant melanoma of the esophagus diagnosed appropriately with novel markers: A case report

  • Authors:
    • Junya Kobayashi
    • Daisuke Fujimoto
    • Makoto Murakami
    • Yasuo Hirono
    • Takanori Goi
  • View Affiliations

  • Published online on: April 12, 2018     https://doi.org/10.3892/ol.2018.8479
  • Pages: 9087-9092
  • Copyright: © Kobayashi et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The present case study reported of amelanotic malignant melanoma of the esophagus. A 68‑year‑old man underwent laparoscopic distal gastrectomy for early gastric cancer diagnosis. After gastrectomy, endoscopic examination revealed a protruded lesion lying adjacent to the melanosis area of the esophagus. Histology of the biopsy specimen suggested malignancy, but the diagnosis could not be made. The patient underwent trans‑thoraco‑abdominal curative subtotal esophagectomy. Immunohistochemical examination of the resected specimen was negative for HBM‑45 and Melan‑A. However, immunohistochemical examinations of SOX10 (Sry‑related HMg‑Box gene 10) and KBA.62, which are not associated with melanosome, were strongly positive, and tyrosinase was notably positive. A diagnosis primary of amelanotic malignant melanoma of the esophagus that consisted of only premelanosomes was made. The present findings suggest that, in the diagnosis of malignant melanoma, SOX10 and KBA.62 may be useful, particularly in diagnosing amelanotic malignant melanoma.
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June-2018
Volume 15 Issue 6

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Kobayashi J, Fujimoto D, Murakami M, Hirono Y and Goi T: A report of amelanotic malignant melanoma of the esophagus diagnosed appropriately with novel markers: A case report. Oncol Lett 15: 9087-9092, 2018
APA
Kobayashi, J., Fujimoto, D., Murakami, M., Hirono, Y., & Goi, T. (2018). A report of amelanotic malignant melanoma of the esophagus diagnosed appropriately with novel markers: A case report. Oncology Letters, 15, 9087-9092. https://doi.org/10.3892/ol.2018.8479
MLA
Kobayashi, J., Fujimoto, D., Murakami, M., Hirono, Y., Goi, T."A report of amelanotic malignant melanoma of the esophagus diagnosed appropriately with novel markers: A case report". Oncology Letters 15.6 (2018): 9087-9092.
Chicago
Kobayashi, J., Fujimoto, D., Murakami, M., Hirono, Y., Goi, T."A report of amelanotic malignant melanoma of the esophagus diagnosed appropriately with novel markers: A case report". Oncology Letters 15, no. 6 (2018): 9087-9092. https://doi.org/10.3892/ol.2018.8479