Isolated liver metastasis detected 11 years after the curative resection of rectal cancer: A case report

Figure 5 Histopathological findings. A: The liver tumor represented a moderately differentiated adenocarcinoma with tubular and cribriform growth patterns (hematoxylin and eosin (H&E) staining at × 10 magnification); B: The rectal cancer represented a moderately differentiated adenocarcinoma (H&E staining at × 10 magnification). The image of the liver tumor showed that its pathological characteristics were the same as the primary rectal cancer; C: The liver tumor cells were positive for CK20 (immunostaining at × 20 magnification); D: The rectal cancer cells were positive for CK20 (immunostaining at × 20 magnification); E: The liver tumor cells were weakly positive for CK7 (immunostaining at × 20 magnification); F: The rectal cancer cells were weakly positive for CK7 (immunostaining at × 20 magnification).