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Analysis of pattern of occurrence of thyroid carcinoma between 2001 and 2010 / Análise do padrão de ocorrência do carcinoma de tireoide entre 2000-2010
Girardi, Fábio Muradás; Barra, Marinez Bizarro; Zettler, Cláudio Galleano.
  • Girardi, Fábio Muradás; Hospital Santa Rita. Head and Neck Surgery Department. Porto Alegre. BR
  • Barra, Marinez Bizarro; Hospital Santa Rita. Head and Neck Surgery Department. Porto Alegre. BR
  • Zettler, Cláudio Galleano; Hospital Santa Rita. Head and Neck Surgery Department. Porto Alegre. BR
Braz. j. otorhinolaryngol. (Impr.) ; 81(5): 541-548, Sept.-Oct. 2015. tab
Article in English | LILACS | ID: lil-766298
ABSTRACT
ABSTRACT

INTRODUCTION:

An ongoing discussion is found in medical literature about the reasons for changes in thyroid carcinoma incidence patterns over the last decades.

OBJECTIVE:

To analyze the clinical and pathological characteristics of thyroid carcinoma cases over a decade.

METHODS:

Cross-sectional study over an historical cohort. Medical records of 628 thyroid cancer cases in a single center were reviewed. 597 patients were included. Microcarcinoma cases were selected for a qualitative analysis phase, in which medical records were reviewed for better understanding of thyroid nodule and thyroid cancer diagnosis process.

RESULTS:

An increase in the proportion of cases with thyroid cancer diagnosis was observed throughout the decade; new cases were predominantly tumors of less than 2 cm, with histopathological signs of low aggressiveness. There was an increase in proportion of cases with malignant cytological results among microcarcinomas.

CONCLUSION:

There is a trend for increase in thyroidectomies due to cancer in this institution, with proportional increment of cases with histopathological characteristics indicative of early disease. Among microcarcinomas, there is an increasing group represented by cancer cases that were not incidentally diagnosed, related to an enhancement in preoperative diagnostic methods.
RESUMO
RESUMO

Introdução:

Persiste uma discussão na literatura sobre as razões para as mudanças no padrão de incidência do carcinoma de tireoide nas últimas décadas.

Objetivo:

Analisar as características clinicopatológicas dos casos de carcinoma de tireoide ao longo de uma década.

Método:

Estudo transversal sobre uma coorte histórica. Os registros médicos de 628 casos de câncer de tireoide de um único centro foram revisados. Foram incluídos 597 pacientes. Os casos de microcarcinoma foram selecionados para uma fase de análise qualitativa, na qual os registros médicos foram revisados para melhor entendimento do processo de diagnóstico do nódulo e do câncer.

Resultados:

Observamos um aumento na proporção de casos com diagnóstico de câncer de tireoide ao longo da década; os novos casos foram predominantemente de tumores < 2 cm, com sinais histopatológicos de baixa agressividade. Houve aumento na proporção de casos com resultado citológico maligno entre os microcarcinomas.

Conclusão:

Há uma tendência de crescimento nas tireoidectomias por câncer na nossa instituição, com incremento proporcional de casos com características histopatológicas indicativas de doença precoce. Entre os microcarcinomas, há um grupo em ascensão representado por casos com diagnóstico não-ocasional de câncer, relacionados à melhora dos métodos diagnósticos pré-operatórios.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Thyroid Neoplasms Type of study: Observational study / Prevalence study / Qualitative research / Risk factors / Screening study Limits: Adolescent / Adult / Aged / Aged80 / Child / Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Santa Rita/BR

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Full text: Available Index: LILACS (Americas) Main subject: Thyroid Neoplasms Type of study: Observational study / Prevalence study / Qualitative research / Risk factors / Screening study Limits: Adolescent / Adult / Aged / Aged80 / Child / Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Santa Rita/BR