Esophageal granular cell tumors: Report of 9 cases and a literature review

Figure 1 Clinical examination of esophageal granular cell tumors and esophageal leiomyomas. A: Conventional gastroscopy showing a representative granular cell tumor (GCT) with white-to-yellow surface color and smooth surface; B: Endoscopic ultrasound (EUS) showing a hypoechoic lesion originating from the mucosa layer; C: Computed tomography scan showing a soft-tissue mass in the esophagus and partial narrowing of the esophageal lumen; D: Conventional gastroscopy showed that the leiomyoma had a light pink surface color with smooth surface; E: EUS showing the leiomyoma with a slightly lower echo than the esophageal GCT.

Figure 2 Clinical management and histological chrematistics of esophageal granular cell tumors. A, B: A typical case of esophageal granular cell tumor treated by endoscopic resection; C: Histological analysis showing the lesion stained positively for S-100; D: Histological analysis showing the lesion stained positively for CD68.