title: [Diagnosis of mediastinal tumors by  99m Tc superior vena cavography and  67 Ga-citrate scan and observation on the progress of the treatment].
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis; D000328:Adult; D000368:Aged; D002951:Citrates; D005260:Female; D005708:Gallium; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000532:radiotherapy; D008875:Middle Aged; D011859:Radiography; D011877:Radionuclide Imaging; D013667:Technetium; D013724:Teratoma / Q000175:diagnosis; D013945:Thymoma / Q000175:diagnosis; D014683:Vena Cava, Superior
chemical_list: D002951:Citrates; D013667:Technetium; D005708:Gallium