title: Metastatic lung tumors. Renal cell carcinoma presenting as mediastinal mass.
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging*; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging*; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011859:Radiography