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. 2022 Mar;96(3):402-412.
doi: 10.1111/cen.14602. Epub 2021 Sep 30.

Different clinicopathologic features predispose to different patterns of distant metastasis with heterogeneous short-term prognosis in patients with differentiated thyroid cancer

Li-Cheng Tan  1   2 , Nai-Si Huang  1   2 , Peng-Cheng Yu  1   2 , Pei-Zhen Han  1   2 , Wan-Lin Liu  1   2 , Zhong-Wu Lu  1   2 , Rong-Liang Shi  1   2 , Xiao Shi  1   2 , Yu Wang  1   2 , Qing-Hai Ji  1   2 , Ning Qu  1   2 , Wen-Jun Wei  1   2 , Yu-Long Wang  1   2
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Different clinicopathologic features predispose to different patterns of distant metastasis with heterogeneous short-term prognosis in patients with differentiated thyroid cancer

Li-Cheng Tan et al. Clin Endocrinol (Oxf). 2022 Mar.

Abstract

Background: Limited studies have focused on the associated clinicopathologic features and short-term prognostic impacts of metastatic patterns at initial diagnosis in differentiated thyroid cancer (DTC).

Methods: Overall, 530 individuals with distant DTC diagnosed between 2010 and 2014 were identified from Surveillance, Epidemiology, and End Results (SEER) database. Multinomial logistic regression model was used to assess the clinicopathologic factors influencing the pattern of distant metastasis. Kaplan-Meier method and multivariable Cox regression were used to estimate the short-term effects of metastatic patterns on overall (OS) and thyroid cancer-specific survival (TCSS).

Results: Fifty, 111, 263, 59 and 47 patients presented with distant lymph node (LN)-only, bone-only, lung-only, bone plus lung, and liver and/or brain metastases (Mets), respectively. Regional lymph node metastasis (LNM) and follicular histotype were the only confirmed risk factors for distant LN-only Mets and bone-only Mets, respectively. Larger tumour size, extrathyroidal extension (ETE) and papillary histotype were associated with lung-only Mets. Synchronous bone and lung Mets were more likely to occur in older patients. In addition, patients with distant LN-only Mets had hardly any negative effect on OS and TCSS, whereas those with synchronous bone and lung or liver/brain Mets predicted unfavourable short-term outcomes, regardless of whether they received total thyroidectomy and radioisotopes.

Conclusions: Different clinicopathologic factors predispose to different patterns of metastases with profound short-term survival differences among DTC patients. Our findings may help to determine effective pretreatment screening for aggressive metastatic patterns at initial diagnosis, and thus to provide additional treatment or access of clinical trials for these patients.

Keywords: clinicopathologic factor; differentiated thyroid cancer; pattern of distant metastasis; population-based database; short-term survival.

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References

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