Fig. 4From: Primary intrahepatic cholangiocarcinoma with sarcomatous stroma: case report and review of the literatureImmunohistochemical staining. Microscopic findings for carcinomatous and sarcomatoid mixed area. a H&E staining revealed that adenocarcinoma cells were positive for b CK7, c CK19, and d EMA; and sarcomatous cells were positive for e S-100, f SMA, and g CD10 (a–g: × 100), but negative for CK7, CK19 and EMA. h Ki67 index was 22% in the sarcomatous elements (× 400)Back to article page