A RESECTED CASE OF GRANULAR CELL TUMOR OF THE CERVICAL ESOPHAGUS

Granular cell tumor (GCT) of the esophagus has been considered to be a relativety rare disease, but the patients with GCT have been increasingly reported with a recent progress of endoscopic diagnosis. GCTs of the esophagus are rare in the upper region and common in the middle to lower region. HistoHistopathologically, immunohistostaining of GCTs reveal the existence of S-100 protein. GCT is en-doscopically resectable in many cases. The authors experienced a case of GCT of the cervical esophagus. A 47-year-old woman was endoscopically proved to have an elevated lesion in the cervical esophagus. It was found to be a submucosal tumor of oval in shape and 40mm in the maximum diameter, and surgically resected. The resected material was proved to be a 40×30×25mm solid tumor and the cut section presented yellow to white in color. Histopathological diagnosis was GCT. It is believed that primary GCT of the esophagus occurs rarely in the cervical region.