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Figure 4. Representative histological images of local colon tumor as well as metastases to the lung, liver, and anterior abdominal wall. (A) and (B) Primary tumor invading the intestinal wall (arrows and dashed lines); C: tumor emboli in intramural and subserosal lymphatics (dashed lines); D: lymph node infiltration. Dashed lines delineate lymph node capsule, arrows indicate tumor cells; E: metastasis to the lung: intravascular tumor embolus (dashed lines) and thrombus (arrow); F: subcutaneous metastasis to anterior abdominal wall (arrows) with epidermis to the right; G and H: multiple metastatic tumor deposits within the liver (dashed lines).