title: Dexamethasone-inhibited pertechnetate uptake in metastatic carcinoma of the cerebellum.
abstract: Two sodium pertechnetate Tc 99m brain scans, done within several days of each other, demonstrated inhibition of pertechnetate localization in a cerebellar lesion after dexamethasone therapy for cerebral edema. The lesion, a metastasis from a bronchogenic mucinous adenocarcinoma, was clearly present in the first scan, which was done before treatment.
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000000981:diagnostic imaging / Q000556:secondary*; D001929:Brain Edema / Q000188:drug therapy; D002528:Cerebellar Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D003907:Dexamethasone / Q000009:adverse effects* / Q000627:therapeutic use; D004347:Drug Interactions; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008875:Middle Aged; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium; D003907:Dexamethasone