A case of early-stage primary malignant melanoma of the esophagus

From the First Department of Internal Medicine, the First Department of Surgery, and Central Pathology, Hirosaki University School of Medicine, Hirosaki, Japan. Reprint requests: Shinsaku Fukuda, MD, First Department of Internal Medicine, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, 0368562 Aomori, Japan. Copyright © 2001 by the American Society for Gastrointestinal Endoscopy 0016-5107/2001/$35.00 + 0 37/4/112368 doi:10.1067/mge.2001.112368 A case of early-stage primary malignant melanoma of the esophagus