Fig. 2

A Macroscopic examination of radical cystectomy of the prostate. The tumor invaded the entire prostate parenchyma, displaying visible necrosis, yellow color and soft texture (the arrow). The tumor partially infiltrated the posterior bladder wall(the triangle). Microscopic examination revealed YST components(B-E), including microcystic B small tubular C and myxoid types D H&E 100 × E YST tumor cells were large with nuclear atypia and rich eosinophilic or transparent cytoplasm, H&E 200 × . F Teratoma components included cartilage, mucinous glands, and ciliated columnar epithelial glands. H&E 100 × . Immunohistochemical examination of YST revealed positive results for AFP G Glypican3 H and SALL4 I 100 ×