PMC3633286_01
Grey-white tumor with adjacent compressed testis and epidydimis. Tumor shows a breach of the tunica albuginea at one end
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F1
Cut section showed a well-circumscribed grey-white tumor measuring 6 x 3 cm with focal areas of hemorrhage [Figure 1].
Monotonous population of tumor cells with adjacent testicular tissue (H and E x40)
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F2
Microscopy showed a small round monotonous population of cells showing isokaryosis and scanty cytoplasm, arranged in sheets [Figures 2 and 3].
Tumor cells showing isokaryosis and scant cytoplasm separated by thin fibrovascular septa (H and E x400)
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F3
Microscopy showed a small round monotonous population of cells showing isokaryosis and scanty cytoplasm, arranged in sheets [Figures 2 and 3].
Immunohistochemistry showing tumor cells positive for CD20
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F4
Immunohistochemistry showed that the tumor cells were positive for CD 20 [Figure 4], and negative for CD 5, CD23 and Cyclin D1.