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Vol. 58. Issue 4.
Pages 283-293 (July - August 2016)
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Vol. 58. Issue 4.
Pages 283-293 (July - August 2016)
Original Report
Imaging and histologic prognostic factors in triple-negative breast cancer and carcinoma in situ as a prognostic factor
Valoración de los factores pronósticos radiopatológicos del cáncer de mama triple negativo y análisis del carcinoma in situ como factor pronóstico
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C. Sebastián Sebastiána,
Corresponding author
crissebseb@gmail.com

Corresponding author.
, C. García Mura, S. Cruz Ciriaa, D.S. Rosero Cuestab, B. Gros Bañeresc
a Servicio de Radiodiagnóstico, Hospital Universitario Miguel Servet, Zaragoza, Spain
b Servicio de Anatomía Patológica, Hospital Universitario Miguel Servet, Zaragoza, Spain
c Servicio de Urgencias, Hospital Universitario Miguel Servet, Zaragoza, Spain
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Table 1. Analysis of radiopathological factors.
Table 2. Summary of overall results.
Table 3. Results based on the presence or absence of relapse.
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Abstract
Objectives

To analyze what factors in magnetic resonance imaging (MRI) and histological study of triple-negative breast cancers are related to tumor recurrence and to shorter disease-free survival. To analyze survival and recurrence in function of the presence of an in situ component.

Material and methods

This was a retrospective study of MRI staging examinations in 122 women with triple-negative breast cancer done from 2007 through 2014. In the MRI, we evaluated morphological variables (size, margins, morphology, internal signal in T2-weighted sequences) and dynamic variables (perfusion and diffusion). In the histological study, we evaluated Ki67, p53, CK5/6, nuclear grade, and Scarff–Bloom grade, as well as the presence of an in situ component and tumor grade (high grade or not high grade). We compared the variables between patients with tumor recurrence and those without, and we conducted a survival analysis.

Results

Non-nodular enhancement was more common in patients with tumor recurrence (p=0.038) and was associated with shorter disease-free survival (p=0.023). Neither diffusion restriction (p=0.079) nor Ki67 (p=0.052) was associated with a worse prognosis. An in situ component was detected in 44% of triple-negative tumors, and a greater proportion of patients in the group with tumor recurrence had an in situ component; however, the presence of an in situ component was not associated with shorter survival (p=0.185).

Conclusion

Non-nodular enhancement was associated with a worse prognosis. Diffusion restriction, Ki67, and the presence of an in situ component were not associated with shorter disease-free survival.

Keywords:
Breast cancer
Triple-negative tumors
Carcinoma in situ
Prognostic markers
Recurrence
Magnetic resonance imaging
Diffusion
Perfusion
Ki67
p53
Resumen
Objetivos

Analizar qué factores valorados en resonancia magnética (RM) y anatomopatológicos de los tumores triple negativo (TN) se relacionan con la recidiva tumoral y con una menor supervivencia libre de enfermedad. Valorar la supervivencia y las recidivas en función de la presencia de componente in situ (CIS).

Material y métodos

Estudio retrospectivo de las RM realizadas desde 2007 a 2014, con inclusión de 122 mujeres con cáncer de mama TN y RM de estadificación. En RM se valoraron las características morfológicas (tamaño, márgenes, morfología y señal interna en secuencia T2) y dinámicas (perfusión y difusión). Se estudiaron también los factores anatomopatológicos (Ki67, p53, CK5/6, grado nuclear y Scarff-Bloom) y se analizó la presencia de CIS y el grado tumoral (alto o no alto grado). Se compararon las distintas variables con la presencia de recidiva y se realizó estudio de supervivencia.

Resultados

El realce no nodular presentó mayor porcentaje en el grupo de recidivas, y la diferencia fue estadísticamente significativa (p=0,038) y se relacionó con una menor supervivencia libre de enfermedad (p=0,023). La restricción a la difusión (p=0,079) y el ki67 (p=0,052) no asociaron un peor pronóstico. Se detectó CIS en el 44% de los TN, con mayor proporción en el grupo de recidiva, sin relación con una menor supervivencia (p=0,185).

Conclusión

El realce no nodular demostró ser un factor de peor pronóstico. La restricción a la difusión, el ki67 y la presencia de CIS no se asociaron a una menor supervivencia libre de enfermedad.

Palabras clave:
Cáncer de mama
Tumores triple negativo
Carcinoma in situ
Marcadores pronósticos
Recidiva
Resonancia magnética
Difusión
Perfusión
Ki67
p53

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