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Risk Factors Involved in the Development of Pneumothorax During Radiofrequency Ablation of Lung Neoplasms

¹ Institute for Diagnostic and Interventional Radiology, Johann Wolfgang Goethe University Hospital, Theodor-Stern-Kai 7, Frankfurt am Main, Hessen 60590, Germany.
² Department of Diagnostic and Interventional Radiology, Cairo University Hospital, Cairo, Egypt.

View larger version (8K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1 —Chart shows study protocol for management of pneumothorax.

View larger version (142K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2 —66-year-old man with metastatic lung lesion from colorectal carcinoma in apical segment of right upper lobe associated with emphysema as risk factor for pneumothorax during radiofrequency ablation. Axial CT scan immediately after radiofrequency ablation shows colorectal metastatic lesion (black arrow) surrounded by multiple emphysematous bullae (white arrowhead) complicated by pneumothorax (black arrowhead) with subcutaneous extension of air in anterior chest wall (white arrow).

View larger version (142K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 3 —68-year-old man with pneumothorax associated with basal location of lesion. Chest CT scan shows metastatic deposit from hepatocellular carcinoma (arrow) in posterior basal aspect of left lower lung lobe complicated by pneumothorax (arrowhead) during ablation.

View larger version (122K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 4A —52-year-old woman with metastatic lung lesion from mammary carcinoma in apicoposterior segment of upper lobe of left lung. Axial CT scans show crossing of major pulmonary fissure as risk factor for pneumothorax during radiofrequency ablation. Axial CT scan shows presence of left oblique pulmonary fissure (arrowhead) between needle electrode (black arrow) and lesion (white arrow) before lung puncture.

View larger version (123K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 4B —52-year-old woman with metastatic lung lesion from mammary carcinoma in apicoposterior segment of upper lobe of left lung. Axial CT scans show crossing of major pulmonary fissure as risk factor for pneumothorax during radiofrequency ablation. Axial CT scans show pneumothorax (arrows) after traversal of oblique pulmonary fissure (arrowhead) with needle electrode.

View larger version (124K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 4C —52-year-old woman with metastatic lung lesion from mammary carcinoma in apicoposterior segment of upper lobe of left lung. Axial CT scans show crossing of major pulmonary fissure as risk factor for pneumothorax during radiofrequency ablation. Axial CT scans show pneumothorax (arrows) after traversal of oblique pulmonary fissure (arrowhead) with needle electrode.

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