Fig. 1

A 48-year-old male had a nodule in the upper left lung lobe for over four months, 16 months after primary hepatoma carcinoma surgery. A A 1.3 × 1.3 cm round nodule was seen in the left upper lung. B With the patient in the prone position and under local anesthesia with 2% lidocaine, CT-guided puncture MWA was performed. C A month after MWA, the lesion lost its original shape, and the surrounding exudate declined. D Six months after MWA, the lesion size was further reduced. E, F A year after MWA, the lesion shrank to a fibrous cord with no enhancement. The efficacy was assessed to achieve complete ablation