title: Probable brain abscess presenting as a high uptake lesion on thallium-201 single photon emission computed tomography--case report.
abstract: A 61-year-old male presented with a brain abscess manifesting as high fever and generalized convulsion attacks. Magnetic resonance (MR) imaging disclosed a ring-like enhanced lesion in the parietal lobe. Thallium-201 single photon emission computed tomography (201Tl SPECT) images demonstrated a high uptake lesion with a 201Tl uptake index on the early image of 2.21, which suggested malignant disease. The washout ratio was 0.73. His symptoms and the ring-like enhanced lesion on MR images disappeared after 2 months of antibiotic treatment. The final diagnosis was brain abscess, despite the 201Tl SPECT findings. 201Tl SPECT washout ratio may be a better indicator of brain abscess than uptake index.
authors.affiliation: Department of Neurosurgery, Kohnan Hospital, Sendai.
authors.forename: S
authors.initials: S
authors.lastname: Sato
authors.forename: K
authors.initials: K
authors.lastname: Ogasawara
authors.forename: H
authors.initials: H
authors.lastname: Kinouchi
authors.forename: K
authors.initials: K
authors.lastname: Kohsyu
authors.forename: T
authors.initials: T
authors.lastname: Yoshimoto
mesh_terms: D001922:Brain Abscess / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010296:Parietal Lobe / Q000000981:diagnostic imaging; D013794:Thallium Radioisotopes; D015899:Tomography, Emission-Computed, Single-Photon
chemical_list: D013794:Thallium Radioisotopes