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FDG-PET/CT activity leads to the diagnosis of unsuspected TB: a retrospective study.

Carolina GeadasCarlos Acuna-VillaordunaGustavo MercierMary B KleinmanC Robert HorsburghJerrold J EllnerKaren R Jacobson
Published in: BMC research notes (2018)
Patient records were searched using the words "positron emission tomography/computed tomography" and 24 codes for TB between 2004 and 2013. Patients with a diagnosis of TB and a PET/CT scan were included. Clinical and radiographic data were retrieved. PET/CT images were reviewed by an experienced radiologist. FDG-PET/CT scans revealed elevated FDG-uptake in lungs of five patients subsequently diagnosed with active (n = 3) or clinically inactive (n = 2) tuberculosis. Uptake magnitude was unrelated to disease activity. These findings suggest that tuberculosis latency may include periods of percolating inflammation of uncertain relationship to future disease risk.
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