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MW ablation of Lung metastasis

​Clinical Case

A 66-year-old patient presented with solitary 17x13 mm lesion in the S3 of left lung. The biopsy revealed prostate cancer metastasis. Seven years ago, the patient was treated for Gleason 3+4=7 prostate cancer with pelvic lymphonodectomy (N0) and external radiotherapy. One year later solitary metastasis in the S2 of left lung was treated with segmentectomy. The patient was on long-term hormone therapy. The ablation of the lung tumor was recommended by tumor board.


The microwave ablation under general anesthesia was chosen. TATO 17 G 20 cm antenna was inserted into the lesion from anterior approach under CT guidance. After 25 W 10 min ablation, antenna was repositioned at the lower and upper parts of the tumor. Additional 25 W 10+10 min ablations were performed. On control CT scan opacification all around the tumor was visible.    

Follow up/Conclusion

Control CT scan was acquired on the next day, the ablation zone was visible clearly around the tumor with the minimal ablative margin of 5 mm. As the biology of the primary cancer was not very aggressive, the patient was followed-up every 6 months for two years. Ablation zone consolidation and shrinkage were observed over the time without any signs of local tumor progression. Ablation should always be considered when treating oligometastatic disease.

Products Used

TATOpro antenna , 17G x 20 cm item code TTP1720CDCM

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