A Rare Case of Phalangeal Metastasis in Papillary Thyroid Cancer.

Han, Na; Wang, Guoqiang; Si, Zengmei; Wang, Xufu · Clin Nucl Med · 2026

case_report · Level V

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Abstract

In differentiated thyroid cancer (DTC), the incidence of bone metastases of papillary thyroid cancer (PTC) is relatively low, with primary sites including the spine, pelvis, and ribs. While metastasis to the phalangeal bones is particularly rare. Here we reported a case of right ring figure metastasis in a 53-year-old woman with PTC. The right ring figure lesion was confirmed to be metastatic PTC by pathologic examination and immunohistochemistry.

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