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Multifoci Bone Tuberculosis and Lymphadenitis in Mediastinum Mimics Malignancy on FDG-PET/CT: A Case Report
Nalan Alan Selçuk1, Ayşen Fenercioğlu2, Hatem Hakan Selçuk3
1Yeditepe University Hospital, Department of Nuclear Medicine, İstanbul, Turkey.
Unlabelled:
Positron Emission Tomography with 2-deoxy-[F-18]-fluoro-D-glucose (FDG-PET) has become a reliable diagnostic tool in clinical practice similar to Magnetic Resonance (MR) imaging and Computed Tomography (CT). FDG-PET has especially been used to differentiate malignant from benign lesions, and for staging and follow- up malignant tumors. However, FDG-PET has some pitfalls in cancer screening and FDG tracer accumulates at sites of infection and inflammation. Bone tuberculosis may be confused with malignant tumors of bone and its metastases, and can accumulate focally increased FDG in active period. We present a 60-year-old woman with lytic bone lesions and mediastinal hypermetabolic foci, initially suspected to be malignant by means of FDG-PET and the other imaging modalities; however, bone biopsy confirmed the diagnosis of bone tuberculosis.
Conflict Of Interest:
None declared.
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