Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
A Retrospective Study, an Initial Lesion of Primary Malignant Melanoma of the Esophagus Revealed by Endoscopy
Sho FukudaHirotaka ItoReina OhbaYuichirou SatoMotoki OhyauchiTakehiko IgarashiNobuya ObanaKatsunori Iijima
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JOURNALS OPEN ACCESS

2017 Volume 56 Issue 16 Pages 2133-2137

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Abstract

A 66-year-old man presented to his previous physician with epigastric discomfort in 2014. He was then referred to our hospital due to suspected primary malignant melanoma of the esophagus (PMME). A biopsy showed atypical cells containing melanin granules. A diagnosis of PMME was thus made. We investigated the endoscopic findings of the previous physician, which revealed a black point-like pigmentation at the same site since 2009. In 2010, black pigmentation was also observed at the same site. Although esophageal melanosis was suspected, no biopsy was performed. This case demonstrates the process by which esophageal melanomas develop into malignant melanomas.

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© 2017 by The Japanese Society of Internal Medicine
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