case_images: PMC3638494_01
case_images: (a) Cross-sectional MRI shows peripheral enhancement of the lesion, which is clearly separate from the testis and demonstrates a central area of necrosis. (b) Cut surface of the specimen shows a yellow tumour mass with central necrosis.
case_images: CRIM.UROLOGY2013-937689.001.jpg
case_images: PMC3638494_01_CRIM.UROLOGY2013-937689.001.jpg
case_images: fig1
case_images: The MRI confirmed a 2.3 cm irregular lesion arising posterior to the lower pole of the right testis that enhanced peripherally with central necrosis and therefore could not rule out a potentially malignant lesion (Figure 1(a)). Sectioning revealed a 20 mm yellow, partly necrotic tumour mass (Figure 1(b)).
case_images: Coagulative necrosis in the central part of the tumour.
case_images: CRIM.UROLOGY2013-937689.002.jpg
case_images: PMC3638494_01_CRIM.UROLOGY2013-937689.002.jpg
case_images: fig2
case_images: Histological examination (H+E) showed a central area of coagulative necrosis with surrounding reactive fibroblastic tissue and inflammation (Figure 2).
case_images: Irregular nests of viable neoplastic cells.
case_images: CRIM.UROLOGY2013-937689.003.jpg
case_images: PMC3638494_01_CRIM.UROLOGY2013-937689.003.jpg
case_images: fig3
case_images: Irregular clusters and solid nests of viable epithelioid cells were present, partly obscured by the fibroblastic tissue reaction (Figure 3). 
case_images: Positive calretinin staining in the neoplastic cells.
case_images: CRIM.UROLOGY2013-937689.004.jpg
case_images: PMC3638494_01_CRIM.UROLOGY2013-937689.004.jpg
case_images: fig4
case_images: On immunohistochemical staining, these epithelioid cells were positive for CAM5.2 and CK7 and also expressed the mesothelial markers calretinin and WT1 (Figure 4).