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  • Author: Priscila Valverde x
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Julia Ramalho Amalio da Silva Breder Endocrinology Department, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil

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Paulo Alonso Garcia Alves Endocrinology Department, Instituto Nacional do Cancer do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil

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Mario Lucio Araújo Pathology Department, Instituto Nacional do Cancer do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil

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Barbara Pires Endocrinology Department, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil

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Priscila Valverde Pathology Department, Instituto Nacional do Cancer do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil

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Daniel Alves Bulzico Endocrinology Department, Instituto Nacional do Cancer do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil

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Fernanda Andrade Accioly Endocrinology Department, Instituto Nacional do Cancer do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil

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Rossana Corbo Endocrinology Department, Instituto Nacional do Cancer do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil

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Mario Vaisman Endocrinology Department, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil

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Fernanda Vaisman Endocrinology Department, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
Endocrinology Department, Instituto Nacional do Cancer do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil

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Objective

A sharp increase in pediatric thyroid cancer incidence is observed during adolescence, driven mainly by girls. Differences in disease presentation across sexual maturity stages raise the question of whether sex steroids have a role in the heterogeneity. The aims of this study were to analyze the influence of puberty and sex on clinical presentation and prognosis and to evaluate the correlation between the expression of sex hormone receptors.

Design and methods

Clinical records and immunohistochemical of specimens from 79 patients were analyzed. Puberty was analyzed by two criteria: end of puberty and beginning, in which the age of 10 was the cutoff.

Results

Postpubertal were more frequently classified as having low-risk disease and a lower frequency of persistent disease, especially when the completion of puberty was used as the criteria. Male sex was associated with a higher risk of persistent disease at the end of the observation period. Estrogen receptor α positivity was low in the entire sample, while progesterone receptor positivity was positive in 30% of the cases. Female hormone receptor expression was not associated with sex, American Thyroid Association risk score, persistent structural disease, or pubertal status.

Conclusion

Our study showed that the completion of puberty correlated best with the clinical behaviour of pediatric thyroid cancer. It was also shown that postpubertal patients have a less aggressive initial presentation and better outcomes. However, this observation could not be explained by the expression of estrogen and progesterone receptors in the primary tumors.

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