PMC8179796_01
CT scans indicated osteolytic destruction of the talus. (A). Axial image. (B). Sagittal image.
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Computed tomography (CT) showed that the left talar body was invaded and had a lytic lesion, which was vulnerable to pathologic fracture (Figure 1).
Detailed operative procedures. (A). Puncture needle was knocked into the talar body. (B). The puncture needle reached the area adjacent to the contralateral cortical bone. (C). A fine drill was used to expand the capacity in all directions. (D). The talar body was gradually filled with PMMA. (PMMA, polymethyl methacrylate).
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The detailed operative procedure was as follows (Figure 2).
Postoperative X-ray images indicated that the talar body was evenly filled with PMMA. (A). Ankle image from anteroposterior view. (B). Ankle image from lateral view. (PMMA, polymethyl methacrylate).
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Postoperative X-rays showed that the talar body was filled with bone cement without leakage (Figure 3).
Postoperative histopathological photos confirmed that the lesion originated from renal clear cell carcinoma. (A). magnification X 40, hematoxylin and eosin stain. (B). magnification X 200, hematoxylin and eosin stain.
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The final pathological result confirmed metastasis originating from renal clear cell carcinoma (Figure 4).