Right testicle operated showed seminoma. ct showed enlarged paraaortic lymph node. does this means metastatis or due to surgery?

Usually metastasis: Seminoma can occur in testes or the mediastinum as the primary tumor, it is classified as one of the germ cell tumors. If there is regional paraaortic node histooogic involvement if usually is metastasis. Chemotherapy and/or radiation has very good cure rate even with metastases. At surgery they sample the regional nodes for involvement to determine best treatment for patient.