Minimal extrathyroidal extension in patients with papillary thyroid microcarcinoma: Is it a real prognostic factor?

Hee Jung Moon, Eun Kyung Kim, Woong Youn Chung, Jung Hyun Yoon, Jin Young Kwak

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Abstract

Background. The clinical impact of minimal extrathyroidal extension (ETE) in patients with conventional papillary thyroid microcarcinoma (PTMC) is still controversial. The clinicopathologic characteristics of patients with or without minimal ETE or recurrence and the clinical impact of minimal ETE were investigated. Methods. This study included 288 patients with conventional PTMC (mean age, 46.6 years; 262 female and 26 male subjects) and more than 5 years of follow-up. Patients were divided into two groups according to ETE and recurrence, and clinicopathologic characteristics between two groups were investigated. Disease-free survival was calculated to compare the clinical impact of minimal ETE between patients with and without ETE. Results. Mean size (6.9 mm) of PTMCs in patients with minimal ETE (n = 89) was significantly larger than that in those (5.8 mm) without (n = 199) (P<0.001). Tumor size [odds ratio (OR) = 1.185; 95% confidence interval (CI) 1.052-1.334], central lymph node (LN) metastasis at diagnosis (OR 2.105; 95% CI 1.182-3.750), and not welldefined margin on ultrasound (OR 3.808; 95% CI 1.055-13.736) were significantly associated with minimal ETE. Twelve patients (4.2%) had recurrence. No clinicopathologic factor was associated with recurrence. Diseasefree survival was not significantly different between patients with and without minimal ETE (P = 0.671). Conclusions. Minimal ETE was statistically significantly associated with tumor size, central LN metastasis, and not well-defined margin on ultrasound. Minimal ETE had no impact on recurrence in patients with conventional PTMC.

Original languageEnglish
Pages (from-to)1916-1923
Number of pages8
JournalAnnals of surgical oncology
Volume18
Issue number7
DOIs
Publication statusPublished - 2011 Jul 1

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Recurrence
Odds Ratio
Confidence Intervals
Lymph Nodes
Neoplasm Metastasis
Papillary Thyroid Microcarcinoma
Disease-Free Survival
Neoplasms
Survival

All Science Journal Classification (ASJC) codes

  • Surgery
  • Oncology

Cite this

@article{eef6f2152d9940288ffd40fd1b2330c6,
title = "Minimal extrathyroidal extension in patients with papillary thyroid microcarcinoma: Is it a real prognostic factor?",
abstract = "Background. The clinical impact of minimal extrathyroidal extension (ETE) in patients with conventional papillary thyroid microcarcinoma (PTMC) is still controversial. The clinicopathologic characteristics of patients with or without minimal ETE or recurrence and the clinical impact of minimal ETE were investigated. Methods. This study included 288 patients with conventional PTMC (mean age, 46.6 years; 262 female and 26 male subjects) and more than 5 years of follow-up. Patients were divided into two groups according to ETE and recurrence, and clinicopathologic characteristics between two groups were investigated. Disease-free survival was calculated to compare the clinical impact of minimal ETE between patients with and without ETE. Results. Mean size (6.9 mm) of PTMCs in patients with minimal ETE (n = 89) was significantly larger than that in those (5.8 mm) without (n = 199) (P<0.001). Tumor size [odds ratio (OR) = 1.185; 95{\%} confidence interval (CI) 1.052-1.334], central lymph node (LN) metastasis at diagnosis (OR 2.105; 95{\%} CI 1.182-3.750), and not welldefined margin on ultrasound (OR 3.808; 95{\%} CI 1.055-13.736) were significantly associated with minimal ETE. Twelve patients (4.2{\%}) had recurrence. No clinicopathologic factor was associated with recurrence. Diseasefree survival was not significantly different between patients with and without minimal ETE (P = 0.671). Conclusions. Minimal ETE was statistically significantly associated with tumor size, central LN metastasis, and not well-defined margin on ultrasound. Minimal ETE had no impact on recurrence in patients with conventional PTMC.",
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Minimal extrathyroidal extension in patients with papillary thyroid microcarcinoma : Is it a real prognostic factor? / Moon, Hee Jung; Kim, Eun Kyung; Chung, Woong Youn; Yoon, Jung Hyun; Kwak, Jin Young.

In: Annals of surgical oncology, Vol. 18, No. 7, 01.07.2011, p. 1916-1923.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Minimal extrathyroidal extension in patients with papillary thyroid microcarcinoma

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AU - Moon, Hee Jung

AU - Kim, Eun Kyung

AU - Chung, Woong Youn

AU - Yoon, Jung Hyun

AU - Kwak, Jin Young

PY - 2011/7/1

Y1 - 2011/7/1

N2 - Background. The clinical impact of minimal extrathyroidal extension (ETE) in patients with conventional papillary thyroid microcarcinoma (PTMC) is still controversial. The clinicopathologic characteristics of patients with or without minimal ETE or recurrence and the clinical impact of minimal ETE were investigated. Methods. This study included 288 patients with conventional PTMC (mean age, 46.6 years; 262 female and 26 male subjects) and more than 5 years of follow-up. Patients were divided into two groups according to ETE and recurrence, and clinicopathologic characteristics between two groups were investigated. Disease-free survival was calculated to compare the clinical impact of minimal ETE between patients with and without ETE. Results. Mean size (6.9 mm) of PTMCs in patients with minimal ETE (n = 89) was significantly larger than that in those (5.8 mm) without (n = 199) (P<0.001). Tumor size [odds ratio (OR) = 1.185; 95% confidence interval (CI) 1.052-1.334], central lymph node (LN) metastasis at diagnosis (OR 2.105; 95% CI 1.182-3.750), and not welldefined margin on ultrasound (OR 3.808; 95% CI 1.055-13.736) were significantly associated with minimal ETE. Twelve patients (4.2%) had recurrence. No clinicopathologic factor was associated with recurrence. Diseasefree survival was not significantly different between patients with and without minimal ETE (P = 0.671). Conclusions. Minimal ETE was statistically significantly associated with tumor size, central LN metastasis, and not well-defined margin on ultrasound. Minimal ETE had no impact on recurrence in patients with conventional PTMC.

AB - Background. The clinical impact of minimal extrathyroidal extension (ETE) in patients with conventional papillary thyroid microcarcinoma (PTMC) is still controversial. The clinicopathologic characteristics of patients with or without minimal ETE or recurrence and the clinical impact of minimal ETE were investigated. Methods. This study included 288 patients with conventional PTMC (mean age, 46.6 years; 262 female and 26 male subjects) and more than 5 years of follow-up. Patients were divided into two groups according to ETE and recurrence, and clinicopathologic characteristics between two groups were investigated. Disease-free survival was calculated to compare the clinical impact of minimal ETE between patients with and without ETE. Results. Mean size (6.9 mm) of PTMCs in patients with minimal ETE (n = 89) was significantly larger than that in those (5.8 mm) without (n = 199) (P<0.001). Tumor size [odds ratio (OR) = 1.185; 95% confidence interval (CI) 1.052-1.334], central lymph node (LN) metastasis at diagnosis (OR 2.105; 95% CI 1.182-3.750), and not welldefined margin on ultrasound (OR 3.808; 95% CI 1.055-13.736) were significantly associated with minimal ETE. Twelve patients (4.2%) had recurrence. No clinicopathologic factor was associated with recurrence. Diseasefree survival was not significantly different between patients with and without minimal ETE (P = 0.671). Conclusions. Minimal ETE was statistically significantly associated with tumor size, central LN metastasis, and not well-defined margin on ultrasound. Minimal ETE had no impact on recurrence in patients with conventional PTMC.

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