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  Indian J Med Microbiol
 

Figure 10: Solitary functioning sacral metastasis in a 68-year-old male with papillary Ca thyroid s/p completion thyroidectomy. WBI scan showed focal 131I uptake in sacral vertebrae, confirmed with SPECT-CT, confirming functioning thyroid metastases in sacrum. MRI LS spine (arrow shows the sacral lesion) with contrast reported: Well-defined expansile lesion measuring 3.6 × 3.2 × 2.6 cm involving S3, S4 vertebrae at left paramedian region with anterior exophytic component likely to be a chordoma. Patient had S2–S5 sacrectomy and high-dose 131I therapy. HPR reported moderate to poorly differentiated carcinoma favoring metastasis

Figure 10: Solitary functioning sacral metastasis in a 68-year-old male with papillary Ca thyroid s/p completion thyroidectomy. WBI scan showed focal <sup>131</sup>I uptake in sacral vertebrae, confirmed with SPECT-CT, confirming functioning thyroid metastases in sacrum. MRI LS spine (arrow shows the sacral lesion) with contrast reported: Well-defined expansile lesion measuring 3.6 × 3.2 × 2.6 cm involving S3, S4 vertebrae at left paramedian region with anterior exophytic component likely to be a chordoma. Patient had S2–S5 sacrectomy and high-dose <sup>131</sup>I therapy. HPR reported moderate to poorly differentiated carcinoma favoring metastasis