False positive thallium-201 SPECT imaging in brain abscess.

Valle, M D Martínez del; Gómez-Río, Manuel; Horcajadas, A.; Rodrı́guez-Fernández, Antonio; Fuentes, M.A. Muros de; Acosta-Gómez, M J; Castañeda, Marco A.; Elvira, J.M. Llamas; Arjona, V.

doi:10.1259/bjr.73.866.10884729

Cited by 10 publications

(3 citation statements)

References 10 publications

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“…201 Tl single photon emission computed tomography (thallium SPECT) has been proposed as an indicator of both the histological grade of the tumour and prognosis of brain lesions. Other authors [18,19] did not confirm this correlation. Most recently, Gungor et al [2] showed that thallium uptake can predict proliferative activity of a glioma as defined by the proliferating cell nuclear antigen labelling index.…”

Section: Introductionmentioning

confidence: 80%

Correlation of preoperative thallium SPECT with histological grading and overall survival in adult gliomas

Comte¹,

Bauchet

Rigau³

et al. 2006

Nuclear Medicine Communications

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Section: Introductionmentioning

confidence: 80%

Correlation of preoperative thallium SPECT with histological grading and overall survival in adult gliomas

Comte¹,

Bauchet

Rigau³

et al. 2006

Nuclear Medicine Communications

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“…30) The intensity of radiotracer uptake in brain abscess is high, but lower than in malignant brain tumor. 3,21,25) The high uptake of 201 Tl in brain abscess is due to the presence of similar histological changes, including changes in bloodbrain barrier permeability, increased vascularity, and increased metabolic cellular activity. 21) Slight 201 Tl uptake specifically occurs in neutrophils and macrophages in inflammatory tissue.…”

Section: Discussionmentioning

confidence: 99%

“…3,21,25) The high uptake of 201 Tl in brain abscess is due to the presence of similar histological changes, including changes in bloodbrain barrier permeability, increased vascularity, and increased metabolic cellular activity. 21) Slight 201 Tl uptake specifically occurs in neutrophils and macrophages in inflammatory tissue. 3) We could differentiate pituitary abscess from pituitary adenoma in our case because the pituitary abscess showed homogeneous uptake by 201 Tl SPECT on both the early and delayed images without enhancement of the central portion on MR imaging.…”

Section: Discussionmentioning

confidence: 99%

Pituitary Abscess Showing High Uptake of Thallium-201 on Single Photon Emission Computed Tomography. Case Report.

Shimamura

Ogane

Takahashi

et al. 2003

Neurol. Med. Chir.(Tokyo)

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A 32-year-old female presented with a rare case of pituitary abscess manifesting as homonymous hemianopsia. Serum prolactin level was slightly high (40.8 ng/ml). Magnetic resonance (MR) imaging showed the content of the lesion as homogeneously isointense on the T 1 -weighted images and hyperintense on the T 2 -weighted images. The capsule of the lesion, which appeared thin and smooth, was enhanced by gadolinium. Dural enhancement around the sella turcica was also recognized. Thallium-201 single photon emission computed tomography ( 201 Tl SPECT) showed homogeneous high accumulation in the pituitary region on both the early and delayed images. The lesion was treated via a transnasaltranssphenoidal approach. The cystic lesion contained pus and the capsule consisted of normal pituitary gland with inflammatory changes. The patient was treated with antibiotics for 3 weeks and the pituitary abscess was cured completely. Pituitary abscess can be differentiated from pituitary adenoma as lesion with a homogeneous high uptake on 201 Tl SPECT on both the early and delayed images, and no enhancement of the central portion on MR images.

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Thallium-201 accumulation in a patient with brain abscess

2002

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A 57-year-old man was admitted to our hospital because of high fever and generalized tonic seizure. Brain magnetic resonance imaging (MRI) delineated multiple abnormal intensity areas. Thallium-201 (201Tl) scintigraphy revealed abnormal uptake in the brain. The imaging findings did not allow definitive exclusion of brain tumor, even though brain abscess was the more strongly suspected diagnosis. As the patient improved, the multiple abnormal intensity areas in the brain on MRI and the abnormal areas of accumulation on 201Tl scintigraphy were reduced, and eventually completely disappeared. A final diagnosis of brain abscess was therefore made. Since relatively few studies have reported 201Tl accumulation in cases of brain abscess, we report here our patient in whom the changes in the accumulation of 201Tl in a brain abscess were observed over time.

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False positive thallium-201 SPECT imaging in brain abscess.

Cited by 10 publications

References 10 publications

Correlation of preoperative thallium SPECT with histological grading and overall survival in adult gliomas

Correlation of preoperative thallium SPECT with histological grading and overall survival in adult gliomas

Pituitary Abscess Showing High Uptake of Thallium-201 on Single Photon Emission Computed Tomography. Case Report.

Thallium-201 accumulation in a patient with brain abscess

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