Figure 2From: Primary pulmonary malignant melanoma: a clinicopathologic study of two cases Immunohistochemical features of pulmonary malignant melanoma: The results of immunohistochemical staining demonstrated the tumor cells were positive for pan- Melanoma (Figure 2A, ×200), HMB45 (Figure 2B, ×200), S-100 protein (Figure 2C, ×200), and Vimentin (Figure 2D, ×200). Back to article page