case_images: PMC5735579_01
case_images: Endoscopic view of an elevated yellow submucosal lesion in esophagus (a). Endosonographic image showed a nonhomogeneous hyperechoic submucosal lesion with a diameter of 12 mm and without extension to muscularis layer (b).
case_images: CRIGM2017-1071623.001.jpg
case_images: PMC5735579_01_CRIGM2017-1071623.001.jpg
case_images: fig1
case_images: Endoscopy identified a firm submucosal yellow lesion, measuring approximately 10 mm and located 30 cm distal from the incisor teeth (Figure 1). It was a nonhomogeneous hyperechoic solid lesion with clear border with no extension to muscularis layer and without mediastinal adenopathies (Figure 1).
case_images: Endoscopic view of the esophagus after endoscopic treatment of tumor (a). Gross appearance of the tumor after endoscopic treatment (b).
case_images: CRIGM2017-1071623.002.jpg
case_images: PMC5735579_01_CRIGM2017-1071623.002.jpg
case_images: fig2
case_images: After creation of the submucosal fluid bulging, the resection of lesion was performed using a monofilament rotatable polypectomy snare (Boston; 20 mm; output setting: cut 40 watts; coagulation 40 watts) without any complication (Figure 2). The size of specimen was 12 x 5 mm with yellow color (Figure 2).
case_images: Section of the esophageal wall (a) showed nests of medium-sized cells with abundant eosinophilic granular cytoplasm (H&E x100). High power view of the tumor in the esophageal wall (b) showed the above-mentioned cells with bland looking nuclei without any atypia or pleomorphism (H&E x400).
case_images: CRIGM2017-1071623.003.jpg
case_images: PMC5735579_01_CRIGM2017-1071623.003.jpg
case_images: fig3
case_images: Histological analysis of specimen revealed nests of medium-sized cells with abundant eosinophilic granular cytoplasm with bland looking nuclei without any atypia or pleomorphism (Figure 3).