Fig. 2
From: Eccrine porocarcinoma of the vulva: a case report and review of the literature
Histopathology and immunohistochemistry of sections of vulva tumor. a Tumor cells appearing as solid nests of cells resembling large alveolar glands, broadly connected to the epidermis (arrow) (hematoxylin and eosin [H&E] staining; magnification × 40). b Tumor cells forming small glandular structures (arrowheads); areas of comedo-necrosis are seen (arrows) (H&E; magnification × 100). c Tumor cells immunopositive for carcinoembryonic antigen at the lumen (arrows) (magnification × 400. d Tumor cells immunopositive for epithelial membrane antigen at the lumenal rims (arrows) (magnification × 400)