Prostatic adenocarcinoma oncocytic variant: Case report and literature review

Figure 1 Oncocytic variant of prostatic adenocarcinoma: Hematoxylin and eosin and Immunohistochemical evaluation. A: Low power view of tumor, showing the tumor cells arranged in glandular and loose epithelial clusters (100 ×); B: High power view of tumor in glandular formations (arrow) and spindled residual prostate myocytes (arrowhead) (200 ×); C: PIN4 immunohistochemical staining identifies tumor (in red) and benign prostatic glands with residual basal cells (in brown) (100 ×); D: PIN4 immunohistochemical staining high power (200 ×) view with tumor (in red) and benign prostatic glands with residual basal cells (in brown).