Fig. 12
From: Image-guided percutaneous ablation for the treatment of lung malignancies: current state of the art
"Iceball" formation and further evolution to an area of lung hemorrhage in an image-guided percutaneous pulmonary cryoablation. a CT scan performed before ablative treatment, demonstrating a single metastatic lesion from a colon carcinoma in the upper right lobe (arrow). b, c CT-guided CA performed with two straight probes. Note the position of the probes, parallel and at the edges of the lesion. In (b) the ice ball (triangle) is observed surrounding the tumor (arrow). This ice ball was subsequently replaced by a ground-glass halo in (c) (triangle). d Contrast-enhanced CT scan performed one month after treatment, with a treated area more extensive than the original lesion (arrow). e, f The treated area gradually decreases in size at three (e) and six months (f) after treatment, consistent with successful treatment (arrows)