Retroperitoneal Extragonadal Nonseminomatous Germ Cell Tumor with Synchronous Orbital Metastasis - Ali Fuat Atmaca; Serkan Altınova; Abdullah Erdem Canda; M. Fuat Ozcan; Suleyman Alıcı; Leyla Memıs; M. Derya Balbay (Advances in Urology)