case_images: PMC9299084_01
case_images: Gastroscopy revealing a mass in the lower esophagus with rigid tissue.
case_images: fsurg-09-942019-g001.jpg
case_images: PMC9299084_01_fsurg-09-942019-g001.jpg
case_images: F1
case_images: Gastroscopy revealed a mass in the lower esophagus with rigid tissue (Figure 1).
case_images: Pathological examination revealing that the tumor was characterized by biphasic architecture consisting of cuboidal ductal cells (black arrow) and myoepithelial cells (red arrow) (200x).
case_images: fsurg-09-942019-g002.jpg
case_images: PMC9299084_01_fsurg-09-942019-g002.jpg
case_images: F2
case_images: Pathological examination revealed the tumor was characterized by biphasic architecture consisting of cuboidal ductal cells and myoepithelial cells (Figure 2).
case_images: On immunohistochemistry, the duct-forming epithelial cells were positive for cytokeratin 7 (200x).
case_images: fsurg-09-942019-g003.jpg
case_images: PMC9299084_01_fsurg-09-942019-g003.jpg
case_images: F3
case_images: On immunohistochemistry, the duct-forming epithelial cells were positive for cytokeratin 7 (Figure 3).
case_images: Outer cells positive for p63, suggesting a myoepithelial phenotype (200x).
case_images: fsurg-09-942019-g004.jpg
case_images: PMC9299084_01_fsurg-09-942019-g004.jpg
case_images: F4
case_images: The outer cells were positive for p40, p63 (Figure 4), and cytokeratin 5/6, suggesting a myoepithelial phenotype.
case_images: Ki-67 labeling index of about 20% (100x).
case_images: fsurg-09-942019-g005.jpg
case_images: PMC9299084_01_fsurg-09-942019-g005.jpg
case_images: F5
case_images: The Ki-67 labeling index was about 20% (Figure 5).