Painful testicular swelling: an unusual localization of sarcoidosis.

Sarcoidosis is a systemic inflammatory disease characterized by non-caseating epitheloid granulomas; whereas it usually involves the lungs and lymph nodes. Testicular sarcoidosis is extremely rare, having been reported to occur in 0.2% of all sarcoidosis patients. We describe a very unusual form of sarcoidosis of the testis, mimicking malignancy at initial presentation.