PMC4719908_01
Color Doppler ultrasonography of the right scrotum.
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A color Doppler image revealed increased vascularity in the epididymis (Fig. 1).
Immunohistochemistry assay of right epididymal tumor.
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Results of immunohistochemical analysis were positive for vimentin and leukocyte common antigen, and diffusely positive for the CD20 antigen (Fig. 2).