A 24 year old male presented with retroperitoneal left necrotic mass near the hilum of kidney which showed heterogenous contrast enhancement on CECT. What is the probable diagnosis?: (A) Metastatic transitional cell carcinoma, (B) Metastatic melanoma, (C) Metastatic germ cell tumour, (D) Lymphoma
Answer is C. . Metastatic germ cell tumour