A Case of Gastrointestinal Stromal Tumor Originating in the Esophagus

Masayuki Fukushima, Yoshitaka Sakamoto, Nagahiro Sato and Yuuichi Nagao

Department of Surgery, Moji Rosai Hospital

We report a relatively rare case of gastrointestinal stromal tumor (GIST) originating in the esophagus. A 61-year-old woman referred for dysphagia suspected of involving esophageal constriction was found in endscopic examination to have a submucosal tumor of the lower thoracic esophagus. CT and MRI showed a solid tumor 6 cm in diameter, suggesting liomyoma originating in the esophagus. Six month later, when she had been reduced to a liquid diet, we extirpated the 70×70 mm. Immunohistochemically, tumor cells were positive for c-kit and CD3 and negative for desmin, S-100, α-SMA, and vimentin. The definitive diagnosis was esophageal GIST. The tumor size suggested had low-grade malignancy.

Key words
gastrointestinal stromal tumor, esophagus

Reprint requests
Masayuki Fukushima Department of Surgery, Moji Rosai Hospital
3-1 Higashiminato-machi, Moji-ku, Kitakyushu, 801-8502 JAPAN

Accepted
November 30, 2005

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