Källén, K Evaluation of malignancy in ring enhancing brain lesions on CT by thallium-201 SPECT. [electronic resource] - Journal of neurology, neurosurgery, and psychiatry Nov 1997 - 569-74 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0022-3050 Standard No.: 10.1136/jnnp.63.5.569 doi Subjects--Topical Terms: AdultAgedAstrocytoma--diagnostic imagingBrain Abscess--diagnostic imagingBrain Neoplasms--diagnostic imagingChildCysts--diagnostic imagingDiagnosis, DifferentialFemaleGlioma--diagnostic imagingHumansMaleMiddle AgedNeoplasm StagingThallium RadioisotopesTomography, Emission-Computed, Single-PhotonTomography, X-Ray Computed