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Hinyokika Kiyo. 2011 Mar;57(3):147-9.

[Organ-sparing surgery for contralateral testicular tumor following orchiectomy : a case report].

[Article in Japanese]

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The Department of Urology, St Luke's International Hospital.


A 30-year-old man underwent a left high orchiectomy because of stage I testicular tumor in December, 2006. A palpable nodule was noticed in the contralateral testicle in March, 2008. No tumor marker was elevated. Imaging studies including ultrasonography and magnetic resonance imaging showed a 13 mm tumor consisting of both a solid portion and a hemorrhagic cyst. A malignant tumor could not be ruled out completely based on examinations and his medical history. Tumor resection with partial orchiectomy was planned after informed consent. Preoperative serum concentration of free testosterone was 8.4 pg/ml, and motile sperm were found in the semen analysis. The tumor was resected while the spermatic cord was clamped transiently. The pathological diagnosis of frozen sections confirmed no malignancy, and the final pathological result was mature teratoma, no evidence of malignancy. No androgen substitution has been required. Furthermore, a few normal motile sperm were detected in the ejaculated semen after the surgery. Organ-sparing surgery for the contralateral testicular tumor following orchiectomy, can be considered to avoid infertility and hormonal substitutions.

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