Figure 4From: A rare case of primary malignant small cell carcinoma combined with urothelial cell carcinoma in the ureterImmunohistochemical examination of the tumour. Immunohistochemical staining showing that the area of small cell carcinoma was positive for (A) neuron-specific enolase and (B) synaptophysin, (C) weakly positive for CD56, and (D) focally positive for chromogranin (each 400×).Back to article page