Non functioning interstitial cell carcinoma of testis

The authors add an additional case to the 13 cases of malignant interstitial cell tumor of the testis previously reported in the literature. It has been thought that the hallmark of metastatic interstitial cell tumor of the testis is endocrinopathy secondary to production of hormones by the tumor. In the case reported here there were no clinical or chemical manifestations of any endocrinopathy, making this case unique.