Del macro al microcarcinoma tiroideo: cambios en las características de presentación del cáncer de tiroides en un centro universitario chileno en 20 años / From macro to micro thyroid carcinoma: records of a clinical hospital from 1991 to 2010
Rev. méd. Chile
;
141(4): 442-448, abr. 2013. ilus, tab
Artículo
en Español
| LILACS
| ID: lil-680466
ABSTRACT
Background:
The prevalence of thyroid cancer has increased, particularly in nodules smaller than 10 mm, probably due to the growing use of routine thyroid ultrasound. There is controversy about the biological behavior of micro carcinomas and the relevance of their early detection.Aim:
To characterize the clinical presentation of thyroid cancer over 20 years in an University medical center and to evaluate the differences between macro and micro carcinomas. Patients andMethods:
We reviewed 1547 surgical biopsy records of thyroid cancer in our institution obtained between 1991 and 2010.Results:
We observed a sustained increase in the rate of thyroidectomies for thyroid cancer (per 1000 surgical procedures) in the study period. Papillary, follicular, mixed, medullary and anaplastic carcinomas were observed in 95, 3, 2, 0.5 and 0.1% of biopsies, respectively. The incidence of tumors of less than 10 mm (micro carcinoma) also increased. Those findings were associated with a significant decrease in tumor aggressiveness, determined by a low frequency of surgical margin involvement of thyroid capsule, perithyroid tissue invasion, vascular permeation and lymph node metastases.Conclusions:
The increased prevalence of thyroid cancer, especially of micro carcinomas, may reflect the greater use of diagnostic ultrasound or represent a real change in the biological behavior of this disease and our data suggest that further studies are needed to know the impact of early treatment in the outcome of those patients because of the real less histologic agressiveness of micro carcinomas.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Neoplasias de la Tiroides
/
Carcinoma Papilar
Tipo de estudio:
Estudio diagnóstico
/
Estudio de incidencia
/
Estudio de prevalencia
/
Estudio pronóstico
/
Factores de riesgo
/
Estudio de tamizaje
Límite:
Adolescente
/
Adulto
/
Anciano
/
Aged80
/
Niño
/
Child, preschool
/
Femenino
/
Humanos
/
Lactante
/
Masculino
País/Región como asunto:
America del Sur
/
Chile
Idioma:
Español
Revista:
Rev. méd. Chile
Asunto de la revista:
Medicina
Año:
2013
Tipo del documento:
Artículo
País de afiliación:
Chile
Institución/País de afiliación:
Pontificia Universidad Católica de Chile/CL
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