Preoperative multidetector computed tomography diagnosis of a seminoma originating from an undescended testis by "testicular vascular pedicle" sign.

We report a 65-year-old man with a palpable right lower quadrant mass who underwent multidetector computed tomography (MDCT) examination. Preoperative diagnosis of seminoma was possible by demonstration of "testicular vascular pedicle" sign by MDCT. We describe CT findings of the "testicular vascular pedicle" sign in this report.