Extrapulmonary tuberculosis (TB) is difficult to diagnose. Here, we report a case of extrapulmonary TB in a 68-year-old woman presented with mental fatigue, poor appetite, and weight loss. 18F-FDG PET/CT revealed elevated 18F-FDG uptake in the left inferior cervical, left supraclavicular, mediastinal, and splenic hilum lymph nodes and spleen, which were suspected of malignant tumor. To further differentiate benign and malignant diseases, 68Ga-FAPI PET/CT was performed. 68Ga-FAPI PET/CT also showed intense 68Ga-FAPI uptake in the previously mentioned FDG-avid lesions. However, biopsy of the left supraclavicular lymph node demonstrated the presence of TB.
Received for publication June 17, 2020; revision accepted July 28, 2020.
Conflicts of interest and sources of funding: none declared.
Correspondence to: Shaoli Song, MD, Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, No. 270, Dong’an Rd, Xuhui District, Shanghai 200032, China. E-mail: shaoli-song@163.com.
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