Axial CT six months

A 77-year-old woman with biopsy-proven 1.8 cm left lower lobe adenocarcinoma (stage IA NSCLC) who was not considered a surgical candidate due to chronic obstructive pulmonary disease and cardiac risk factors. Contrast-enhanced axial CT at six-months. The area treated has decreased in size without evidence of enhancement (arrow), findings consistent with successful tumor ablation. A small calcified granuloma is present anteriorly.