title: Thyroid imaging--nonvisualization of one thyroid lobe.
mesh_terms: D000293:Adolescent; D006801:Humans; D008297:Male; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013667:Technetium; D013961:Thyroid Gland / Q000000981:diagnostic imaging*; D013963:Thyroid Hormones / Q000494:pharmacology*
chemical_list: D013963:Thyroid Hormones; D013667:Technetium; D013670:Sodium Pertechnetate Tc 99m