Cardiac metastasis of lung cancer diagnosed by fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT)

Lung cancer is currently one of the most common malignancies worldwide. Among all metastatic sites of this cancer, cardiac metastases are exceptional, and long-term prognosis in these patients is very poor. 18F-FDG PET/CT is a valuable imaging tool for initial staging and assessment of treatment response of various neoplasms. In the case of lung cancer, its role is clearly defined, and its effectiveness is superior to other diagnostic imaging methods. We present a rare 18F-FDG PET/CT image finding in a 71-year-old man with biopsy-proven lung squamous cell carcinoma, showing increased cardiac 18F-FDG uptake subsequently found to be compatible cardiac metastasis.