Abstract
We present a unique case of a heart-shaped lesion identified on Fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) imaging in a patient with metastatic adenocarcinoma of the left lung. The patient, initially diagnosed with a mass in the left upper lobe and a lytic lesion in the L3 vertebra, underwent chemoradiation therapy. Subsequent imaging revealed significant metabolic activity reduction in lung and vertebral lesions. This case emphasizes the occasional atypical and visually intriguing patterns encountered in PET/CT imaging.