Factores pronóstico de las variantes de cáncer papilar de tiroides / Association between pathological variants of papillary thyroid cancer and prognosis
Rev. chil. cir
; 62(3): 228-233, jun. 2010. tab
Article
in Es
| LILACS
| ID: lil-562720
Responsible library:
CL1.1
ABSTRACT
Background:
Papillary thyroid carcinoma had a survival over 90 percent in stages I , II and III. Treatment failures are observed in advanced tumors, when there is lymph node involvement or when there is vascular invasion.Aim:
To assess the prognostic value of pathological variants of papillary thyroid carcinoma. Material andMethods:
Review of pathological records of patients with papillary thyroid cancer operated between January 1999 and December 2008 in a regional hospital. The pathological variant of the tumor was revised and classified again as follicular variant, sclerosing, solid, tall cell variant, columnar variant, oncocytic, cribriform, microcarcinoma, insular variant and poorly differentiated.Results:
The records of 51 females aged 48 +/- 16 years and 12 males aged 42 +/- 18 years were identified. Forty patients had a well differentiated carcinoma (63 percent), 16 had a follicular variant (25 percent), four had a sclerosing variant and three other types. Capsule involvement was observed in six of 27 stage I, four of nine stage II, 20 of 26 stage III and one of one stage four tumor. Peritumoral lymphatic invasion was observed in 12 of 27 stage I, four of nine stage II, 21 of 26 stage III and one of one stage IV tumor. Lymph node relapse was observed in three patients without and nine patients with capsule involvement (p < 0.01) and in 11 of 38 patients without and 27 of 38 patients with lymphatic invasion (p < 0.01). Two patients in stage III and one in stage IV died. Lethality was 3 percent.Conclusions:
Relapse of papillary carcinoma was associated with capsule involvement and lymphatic invasion. Tumor variants were not associated with relapse or mortality.RESUMEN
Objetivo del estudio Identificar la incidencia de las variantes del cáncer papilar de tiroides (CPT), factores de mal pronóstico asociados a variantes histológicas, comparar la recurrencia y estadio de la enfermedad según la variedad, e identificar pacientes de alto riesgo de recurrencia. Material y Método:
Cohorte única longitudinal entre Enero de 1999 y Diciembre de 2008. La clasificación de los subtipos fue papilar bien diferenciado, variante folicular, esclerosante, sólido, células altas, células columnares, oncocítico, cribiforme, microcarcinoma, insular y pobremente diferenciado.Resultados:
Incidencia papilar bien diferenciado 40 casos (63,5 por ciento), variante folicular 16 casos (25,4 por ciento), esclerosante 4 casos, otros 3 casos. Hubo compromiso de la cápsula del tiroides en 6/27 casos en estadio I, 4/9 casos en estadio II, 20/26 casos en estadio III y 1/1 caso en estadio IV, p < 0,01. Hubo 3 recurrencias ganglionares sin compromiso tumoral de la cápsula y 9 recurrencias con compromiso tumoral, p < 0,05. Hubo invasión linfática peritumoral en 12/27 en estadio I; 4/9 casos en estadio II, 21/ 26 casos en estadio III, y 1/1 en estadio I V, p < 0,05. En 11/38 pacientes sin invasión linfática hubo recurrencia ganglionar y 27/38 con invasión linfática hubo recurrencia, p < 0,01. Fallecieron 2 casos en estadio III y 1 en estadio I V, p < 0,01. La letalidad fue 3,2 por ciento.Conclusión:
La recurrencia se asoció a estadio avanzado, compromiso de cápsula e infiltración linfática. No identificamos asociación entre recurrencia y variedades del CPT. La mortalidad se asoció a estadio avanzado. No identificamos asociación entre variante histológica y mortalidad, p = 0,48.Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Thyroid Neoplasms
/
Carcinoma, Papillary
Type of study:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
Es
Journal:
Rev. chil. cir
Journal subject:
CIRURGIA GERAL
Year:
2010
Document type:
Article
Affiliation country:
Chile
Country of publication:
Chile