Embryonal carcinoma metastasis from pure testicular teratoma mimicking a complex renal cyst.

Teratoma is frequently found in mixed germ cell testicular tumors in up to 80% of cases, but as a pure component it is reported in only 2-6% of cases. Metastatic disease may be seen in 29-76% of these cases in the adult population. We present the case of a 32 year old male patient diagnosed with a pure testicular teratoma in clinical stage I and a right renal cyst Bosniak IIF, as part of treatment he received chemotherapy, during which, radiological changes were observed at the level of renal cyst suggesting metastatic tumor.

Bilateral wunderlich syndrome secondary to synchronous bilateral testicular germ cell tumor. A case report.

Testicular cancer accounts for 1% of male neoplasms, the most common histology is bilateral presentation is reported in 1-2% of cases, and germ cell tumor histology represents 90-95% of cases. Especifically, choriocarcinoma as a pure component represents 0.3-1% of these neoplasms and as a mixed component, 8%.