Metastatic prostate tumor to testes: Sign of advance disease.

Prostate cancer is the second most common cause of mortality for males in the United States. Metastases may be present, typically in the axial skeletal region. To date, few patients have presented with metastases to the testicles.

Renal endometriosis: A benign disease with malignant presentation.

Endometriosis is a common gynecological disorder in which endometrial tissue is located outside the uterine cavity. Urinary tract involvement by endometriosis is uncommon. Renal endometriosis is a rare disorder and is not evident on imaging.