Figure 3
From: Primary mucinous cystadenoma of the spermatic cord within the inguinal canal
Immunohistochemical findings of the tumor. Immunostaining for CEA. The cytoplasm of neoplastic cells shows diffuse strong positive reaction to CEA (A, x 200). Immunostaining for CK20. The tumor cells also exhibit diffuse positive reaction to CK20 (B, x 200). Immunostaining for CDX2. The nuclei of neoplastic epithelial cells display diffuse strong positive reaction to CDX2 (C, x 200). Immunostaining for CD15. The cells are focally positive for CD15 (D, x 200). Immunostaining for PAX8. The cells are negative for PAX8 (E, x 200). Immunostaining for WT-1. The cells are negative for WT-1 (F, x 200).