[Diagnosis and treatment of rare testicular tumors using the example of malignant mesothelioma of the tunica vaginalis testis and Sertoli cell tumors].

Rare tumors of the testis not originating from germinal epithelium are a diagnostic and therapeutic challenge.

To present current approaches in rare tumors of the testis using the examples of Sertoli cell tumor (SCT) and malignant mesothelioma of the tunica vaginal testis (MMTVT).