Background: Data relating the size of thyroid cancer with histological types and variants are scarce. Methods: All incident thyroid cancer diagnosed between 2003 and 2012 in a mildly iodine-deficient area were derived from a population-based tumor registry. Undifferentiated/anaplastic thyroid cancer and incidental cases were excluded. Major diameter of thyroid cancer, as assessed by pathological examination, was stratified in classes: ≤10 mm; 11-20 mm; 21-40 mm; and >40 mm. For each class, absolute and relative frequencies of histological types were calculated. Results: Tumors >20 mm were more frequent among follicular thyroid carcinoma (FTC) and Hürthle cell carcinoma than in other histotypes, with median size of 22.50 mm (95% confidence interval [CI] 16.71-28.29) and 25.00 mm (95% CI 17.04-32.96) in FTC and Hürthle cell carcinoma, respectively. Odds ratio for tumors >20 mm was significant for FTC and Hürthle cell carcinoma only (P <.0001). Conclusion: Among the histotypes and variants of differentiated thyroid cancer, FTC and Hürthle cell carcinoma are characterized by the largest size.

Size of thyroid carcinoma by histotype and variants: A population-based study in a mildly iodine-deficient area / Marina, Michela; Ceda, Gian Paolo; Corcione, Luigi; Sgargi, Paolo; Michiara, Maria; Silini, Enrico Maria; Ceresini, Graziano. - In: HEAD & NECK. - ISSN 1043-3074. - 39:10(2017), pp. 2095-2103. [10.1002/hed.24877]

Size of thyroid carcinoma by histotype and variants: A population-based study in a mildly iodine-deficient area

Marina, Michela;Ceda, Gian Paolo;Corcione, Luigi;Silini, Enrico Maria;Ceresini, Graziano
2017

Abstract

Background: Data relating the size of thyroid cancer with histological types and variants are scarce. Methods: All incident thyroid cancer diagnosed between 2003 and 2012 in a mildly iodine-deficient area were derived from a population-based tumor registry. Undifferentiated/anaplastic thyroid cancer and incidental cases were excluded. Major diameter of thyroid cancer, as assessed by pathological examination, was stratified in classes: ≤10 mm; 11-20 mm; 21-40 mm; and >40 mm. For each class, absolute and relative frequencies of histological types were calculated. Results: Tumors >20 mm were more frequent among follicular thyroid carcinoma (FTC) and Hürthle cell carcinoma than in other histotypes, with median size of 22.50 mm (95% confidence interval [CI] 16.71-28.29) and 25.00 mm (95% CI 17.04-32.96) in FTC and Hürthle cell carcinoma, respectively. Odds ratio for tumors >20 mm was significant for FTC and Hürthle cell carcinoma only (P <.0001). Conclusion: Among the histotypes and variants of differentiated thyroid cancer, FTC and Hürthle cell carcinoma are characterized by the largest size.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2837391
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