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Wang, Fei; Yu, Xiaolong; Shen, Xiaopei; Zhu, Guangwu; Huang, Yueye; Liu, Rengyun; Viola, David; Elisei, Rossella; Puxeddu, Efisio; Fugazzola, Laura; Colombo, Carla; Jarzab, Barbara; Czarniecka, Agnieszka; Lam, Alfred K; Mian, Caterina; Vianello, Federica; Yip, Linwah; Riesco-Eizaguirre, Garcilaso; Santisteban, Pilar; O’Neill, Christine J; Sywak, Mark S; Clifton-Bligh, Roderick; Bendlova, Bela; Sýkorová, Vlasta; Wang, Yangang; Liu, Shiguo; Zhao, Jiajun; Zhao, Shihua; Xing, Mingzhao
The journal of clinical endocrinology and metabolism, 2017-September, Letnik: 102, Številka: 9Journal Article
Abstract Context Multifocality is often treated as a risk factor for papillary thyroid cancer (PTC), prompting aggressive treatments, but its prognostic value remains unestablished. Objective To investigate the role of tumor multifocality in clinical outcomes of PTC. Methods Multicenter study of the relationship between multifocality and clinical outcomes of PTC in 2638 patients (623 men and 2015 women) with median interquartile range (IQR) age of 46 (35 to 58) years and median (IQR) follow-up time of 58 (26 to 107) months at 11 medical centers in six countries. Surveillance, Epidemiology and End Results (SEER) data were used for validation. Results Disease recurrence in multifocal and unifocal PTC was 198 of 1000 (19.8%) and 221 of 1624 (13.6%) (P < 0.001), with a hazard ratio of 1.55 95% confidence interval (CI), 1.28 to 1.88, which became insignificant at 1.13 (95% CI, 0.93 to 1.37) on multivariate adjustment. Similar results were obtained in PTC variants: conventional PTC, follicular-variant PTC, tall-cell PTC, and papillary thyroid microcarcinoma. There was no association between multifocality and mortality in any of these PTC settings, whereas there was a strong association between classic risk factors and cancer recurrence or mortality, which remained significant after multivariate adjustment. In 1423 patients with intrathyroidal PTC, disease recurrence was 20 of 455 (4.4%) and 41 of 967 (4.2%) (P = 0.892) and mortality was 0 of 455 (0.0%) and 3 of 967 (0.3%) (P = 0.556) in multifocal and unifocal PTC, respectively. The results were reproduced in 89,680 patients with PTC in the SEER database. Conclusions Tumor multifocality has no independent risk prognostic value in clinical outcomes of PTC; its indiscriminate use as an independent risk factor, prompting overtreatments of patients, should be avoided. Despite common belief, this study shows no independent role of multifocality in clinical outcomes of PTC; its indiscriminate use as a risk factor, prompting overtreatment, should be avoided.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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