case_images: PMC5390533_01
case_images: Chest X-ray shows left mediastinal mass.
case_images: CRIPA2017-7312740.001.jpg
case_images: PMC5390533_01_CRIPA2017-7312740.001.jpg
case_images: fig1
case_images: Nevertheless, his chest X-ray showed left sided chest mass (Figure 1).
case_images: CT of abdomen and pelvis shows the retroperitoneal masses.
case_images: CRIPA2017-7312740.002.jpg
case_images: PMC5390533_01_CRIPA2017-7312740.002.jpg
case_images: fig2
case_images: There were also retroperitoneal masses measuring in combination 15 x 15 cm extending from upper abdomen down to the level of aortic bifurcation and associated with significant bilateral hydronephrosis and hydroureters (Figure 2).
case_images: Hematoxylin and eosin (H&E) examination of the core needle biopsy of the mediastinal mass (x20).
case_images: CRIPA2017-7312740.003.jpg
case_images: PMC5390533_01_CRIPA2017-7312740.003.jpg
case_images: fig3
case_images: The cells show enlarged nuclei and abundant eosinophilic cytoplasm with focal necrosis and scattered mitoses (Figure 3).
case_images: Immunohistochemical examination of the mediastinal mass core needle biopsy using the Prostate Specific Antigen (PSA) stain (x20).
case_images: CRIPA2017-7312740.004.jpg
case_images: PMC5390533_01_CRIPA2017-7312740.004.jpg
case_images: fig4
case_images: Immunohistochemical stains were done and surprisingly showed diffuse and strong positivity for PSA (Figure 4) and CK8/18.