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Radiología Aportación de la mamografía con contraste en el diagnóstico y estadificación...
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Vol. 68. Núm. 5.
(Septiembre - Octubre 2026)
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Visitas
1296
Vol. 68. Núm. 5.
(Septiembre - Octubre 2026)
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Aportación de la mamografía con contraste en el diagnóstico y estadificación del carcinoma lobulillar infiltrante de mama

Use of contrast-enhanced mammography for the diagnosis and staging of invasive lobular breast cancer
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1296
A. Mariscal Martíneza,
Autor para correspondencia
mariscal.germanstrias@gencat.cat

Autor para correspondencia.
, H. Peris Alvàa, A.P. Salazar Gómeza, P. Rodríguez Martínezb, A. Catanesea, M. Negrini Moruxa, P. Puyalto de Pabloc
a Servicio de Radiología, Unidad de Diagnóstico por la Imagen de la Mama, Hospital Universitario Germans Trias i Pujol, Badalona, Barcelona, España
b Servicio de Anatomía Patológica, Hospital Universitario Germans Trias i Pujol, Badalona, Barcelona, España
c Servicio de Radiología, Hospital Universitario Germans Trias i Pujol, Badalona, Barcelona, España
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Resumen
Objetivo

Valorar la precisión de la mamografía con contraste (MC) en el diagnóstico y estadificación local del carcinoma lobulillar infiltrante (CLI) de mama.

Materiales y métodos

Se realizó un estudio retrospectivo unicéntrico, entre septiembre 2019 y junio del 2024, de pacientes con diagnóstico histológico de CLI puro, sometidas a cirugía primaria y MC durante la planificación prequirúrgica. Se analizaron las características tumorales y multifocalidad para la mamografía convencional, MC y resonancia magnética (RM) de mama cuando estuvo disponible. La precisión diagnóstica se evaluó mediante las tasas de detección de las técnicas de imagen. La estadificación local se analizó comparando el tamaño tumoral prequirúrgico y la presencia de multifocalidad respecto al estudio anatomopatológico.

Resultados

Se incluyó a 16 pacientes con CLI puro. La mamografía convencional solo permitió la detección en el 56,2% de casos (9/16). La MC detectó el 100% de los carcinomas lobulillares infiltrantes y la RM detectó el 100% de los casos evaluados (14/14). La precisión en la valoración del tamaño de los casos detectados mostró un tamaño medio tumoral por mamografía convencional, MC y RM de 13,87mm, 36,06mm y 38,71mm, respectivamente, vs 35,1mm en el examen anatomopatológico. Se evidenció una diferencia estadísticamente significativa entre las medidas de las lesiones obtenidas por mamografía convencional y el tamaño histológico (p=0,0075). No se observaron diferencias estadísticamente significativas entre las medidas obtenidas por MC (p=0,85) ni RM (p=0,75). La tasa de detección de multifocalidad de la MC fue mayor que con la mamografía convencional y similar a la RM.

Conclusiones

La MC es una técnica radiológica emergente que ha mostrado gran precisión para el diagnóstico y estadificación del CLI de mama, con valores diagnósticos similares a la RM.

Palabras clave:
Mamografía con contraste
Cáncer de mama
Resonancia magnética de mama
Abstract
Objective

To evaluate the accuracy of contrast-enhanced mammography (CEM) in the diagnosis and local staging of invasive lobular carcinoma (ILC) of the breast.

Materials and methods

A single-centre retrospective study was conducted between September 2019 and June 2024, including patients with a histological diagnosis of pure invasive lobular carcinoma (ILC) who underwent primary surgery and contrast-enhanced mammography (CEM) as part of preoperative planning. Tumour characteristics and multifocality were analysed using conventional mammography, CEM and breast magnetic resonance imaging (MRI) when available. Diagnostic accuracy was analysed based on the detection rates of the imaging techniques. Local staging was evaluated by comparing the preoperative tumour size and presence of multifocality with the pathological findings.

Results

A total of 16 patients with pure ILC were included. Conventional mammography detected the tumour in only 56.2% of cases (9/16). CEM detected 100% of ILCs, and MRI detected 100% of the cases evaluated (14/14). Accuracy in tumour size assessment among detected cases showed mean tumour sizes of 13.87mm with conventional mammography, 36.06mm with CEM, and 38.71mm with MRI, compared to 35.1mm on pathological examination. A statistically significant difference was observed between tumour size measurements by conventional mammography and the histological size (p=0.0075). No statistically significant differences were found between tumour sizes measured by CEM (p=0.85) or MRI (p=0.75) and histological size. CEM demonstrated a higher detection rate of multifocality compared to conventional mammography, and a rate similar to that of MRI.

Conclusions

CEM is an emerging radiological technique that has shown high accuracy for the diagnosis and staging of ILC of the breast, with a diagnostic performance comparable to that of MRI.

Keywords:
Contrast-enhanced mammography
Breast cancer
Breast magnetic resonance imaging
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