Malignant Mesothelioma of the Spermatic Cord 227 FIG. 3. (A) Epithelial tumor cells form a tubuloglandular structure (H&E, x200). (B) Sarcomatous tumor cells composed of pleomorphic spindle cells with frequent abnormal mitosis (arrow) (H&E, x200). (C) Peritoneal nodules show infiltrative sarcomatous tumor cells into the adipose tissue (H&E, x40). FIG. 4. The epithelial and sarcomatoid tumor cells were immunoreactive to cytokeratin (CK), calretinin, vimentin (VIM), and mesothelial antibody (HBME-1) but not to carcinoembryonic antigen (CEA) (immunochemical stain, x100). Korean J Urol 2011;52:225-229