case_images: PMC6167577_01
case_images: (a) Upper gastrointestinal endoscopy showing a pedunculated polypoid tumor in the middle thoracic esophagus. (b) Barium esophagography revealing an elevated lesion in the middle thoracic esophagus.
case_images: CRIS2018-8685371.001.jpg
case_images: PMC6167577_01_CRIS2018-8685371.001.jpg
case_images: fig1
case_images: A follow-up examination that included an upper gastrointestinal endoscopy showed a pedunculated polypoid tumor in the middle thoracic esophagus, approximately 2 cm in diameter (Figure 1(a)). A barium esophagogram showed an elevated mass in the middle thoracic esophagus (Figure 1(b)).
case_images: (a) Pathological findings of biopsy specimens; tumor cells with acidophilic cytoplasm proliferated without a tubular structure. (b) Tumor cells showing immunopositive for hepatocyte stain.
case_images: CRIS2018-8685371.002.jpg
case_images: PMC6167577_01_CRIS2018-8685371.002.jpg
case_images: fig2
case_images: The biopsy specimen obtained from the esophageal lesion revealed tumor cells with acidophilic cytoplasm that proliferated without a tubular structure (Figure 2(a)). Tumor cells in the biopsy specimens were positive for hepatocyte stain (monoclonal mouse anti-human hepatocyte antibody) (Figure 2(b)).
case_images: Chest computed tomography showing an elevated mass in the esophageal lumen (arrow).
case_images: CRIS2018-8685371.003.jpg
case_images: PMC6167577_01_CRIS2018-8685371.003.jpg
case_images: fig3
case_images: Chest computed tomography (CT) showed an elevated mass in the esophageal lumen (Figure 3).
case_images: (a) By gross appearance, the resected specimen shows a reddish polypoid tumor in the middle esophagus. (b) Metastatic hepatocellular carcinoma to the esophagus confirming by positive AFP staining.
case_images: CRIS2018-8685371.004.jpg
case_images: PMC6167577_01_CRIS2018-8685371.004.jpg
case_images: fig4
case_images: The gross appearance of the resected specimen was a reddish polypoid tumor in the middle esophagus (Figure 4(a)). A metastatic esophageal tumor from HCC was confirmed by positive immunohistochemical staining for hepatocyte and AFP (Figure 4(b)).