PMC6489639_01
A subcutaneous soft tissue mass, which exhibited low signal intensity on T1-weighted images (left) and heterogeneous signal intensity on T2-weighted images (middle). The tumor was enhanced by gadolinium injection (right).
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T1-weighted images and heterogeneous signal intensity on T2-weighted images. The tumor was enhanced by a gadolinium injection (Figure 1).
Magnetic resonance imaging (MRI) revealed the intramedullary metastasis at femur.
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On MRI, the tumor size on the mid-shaft of the right femur was 2 cm (Figure 2).
After tract was holed by electric drill, ablation needles were inserted into the proximal and distal side of the tumor.
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First, cryoablation under CT guidance was performed (Figures 3 and 4).
On CT, the density of right metastatic femur was different from that of opposite side (right). After the cryoablation, contrast-enhanced CT showed the frozen region (middle). Finally, plate fixation and cementation were performed (left).
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First, cryoablation under CT guidance was performed (Figures 3 and 4).
In the histopathological findings of curettage tissue, tumor cells were not observed.
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Tumor cells were not observed in the histopathological findings of the curettage tissue (Figures 5 and 6).
On X-ray, the femur was reinforced by plate and cement. Left: AP view, right: lateral view.
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Tumor cells were not observed in the histopathological findings of the curettage tissue (Figures 5 and 6).