title: Calyceal pertechnetate as a false-positive focus of ectopic gastric mucosa.
abstract: This case report describes a patient in whom concentration of Tc-99m pertechnetate in a renal calyx created a false diagnostic impression of ectopic gastric mucosa. The administration of furosemide demonstrated the benign cause of the focus.
mesh_terms: D000328:Adult; D002828:Choristoma / Q000000981:diagnostic imaging*; D005189:False Positive Reactions; D005260:Female; D005753:Gastric Mucosa; D006801:Humans; D007670:Kidney Calices / Q000000981:diagnostic imaging; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m
chemical_list: D013670:Sodium Pertechnetate Tc 99m