Clinical Application of CT-Guided Percutaneous Microwave Ablation for the Treatment of Lung Metastasis from Colorectal Cancer

Figure 2

A 62-year-old man with lung metastases from colorectal carcinoma in the left upper lobe with a diameter of 1.5 cm (a). Ablation was performed after accurate insertion of MWA probe into the focus of tumor (b). The immediate postoperative CT scan showed pneumothorax (lung compressed approximately 40%), and thoracic cavity closed drainage was conducted immediately (c). The lesion enlarged slightly with ill-defined margin and air-filled cavity on one month follow-up (d). During 3 (e) and 6 (f) months follow-up, the lesion was shrunk gradually and replaced by fibrous tissue with no evidence of tumor remnants.

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(b)

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