Abstract
Learning point for clinicians Positron emission tomography-computed tomography (PET/CT) is valuable in differentiating malignant from benign lesions. However, PET/CT has its own pitfalls for inflammatory lesions such as tuberculosis (TB) can be highly fluorodeoxyglucose (FDG)-avid, mimicking malignant metastases. Our case highlights that TB and metastasis are very similar in FDG PET/CT. Pathology is the prerequisite of correct diagnosis and intervention. In March 2016, a 52-year-old man experienced progressive pain of right lower limb for 2 months and intermittent fever, cough and expectoration for one week. Besides, he complained of significant weight loss in the past six months. His past history was remarkable for 20-year hypertension of good control with Nifedipine and Betaloc and 6-year chronic renal failure with regular renal dialysis. In 1992, he suffered …
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