Hot liver on 18F-FDG PET/CT imaging-a quandary for oncoradiologists in South Asia.

A 56-year-old female presented with intermittent hemoptysis and was diagnosed with lung cancer. 18F-fluorodeoxyglucose positron emission tomography/CT for staging revealed hypermetabolic liver (hot liver), uptake in the mediastinal lymph nodes and reduced uptake in the kidneys. Unexpectedly, liver biopsy findings were consistent with tuberculous infection. Following the intensive phase of antituberculous treatment, repeat CT revealed significant resolution of the mediastinal lymph nodes making the lung cancer Stage 1 (T1 lesion). She underwent left lower lobectomy as a definitive surgical treatment. Positron emissiontomography/CT scan in this patient was considered to be a hepatic superscan since it revealed a hot liver.