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Rev. cuba. med. mil ; 42(4): 484-489, sep.-dic. 2013.
Article in Spanish | LILACS | ID: lil-697496

ABSTRACT

Se presenta una paciente femenina de 69 años de edad, quien acudió en varias ocasiones al consultorio del médico de familia por notar aumento de volumen en la mama izquierda, considerado como resultado del efecto adverso a la ingestión de espironolactona. Se suspende el medicamento sin mejoría clínica. Se indicó ultrasonido de mama y se informa imagen de aspecto tumoral debajo del tejido mamario, que impresiona estar en relación con el músculo pectoral mayor; a esto se asocia una alteración del patrón mamario. Se realizó mamografía diagnóstica, se encuentra asimetría de volumen de la mama izquierda y una zona de aumento de la densidad cerca del pectoral, sin visualizar nódulo definido. Se realizó tomografía axial computarizada simple y contrastada. Se aprecia masa tumoral del músculo pectoral mayor izquierdo que infiltra tejido mamario y mediastino anterior, con diagnóstico imaginológico sugestivo de tumor del músculo pectoral mayor izquierdo. Se realizó biopsia por aguja fina de la lesión, guiada por ultrasonido y el diagnóstico fue carcinoma lobulillar infiltrante de mama. Se concluye que el comportamiento imaginológico puede estar relacionado con las pobres manifestaciones clínicas y, por tanto, con el diagnóstico tardío.


The case of 69 years-old woman, who went several times to the family physician's office because of the increased volume of her left breast, was presented. This problem was considered to result from the adverse effect of the spironolactone intake. The drug consumption ceased but there was no clinical improvement. Breast ultrasound test was indicated in which a tumor-like image below the breast tissue was observed; it seemed to be related to the major pectoralis muscle, additionally, there was altered breast pattern. Diagnostic mammography was performed, asymmetric volume of the left breast was found together with an increased density area located near the pectoralis, without viewing a defined nodule. Simple and contrast computerized tomography were also performed. It was observed that there was tumor mass in the left pectoralis major muscle infiltrating into the breast tissue and the anterior mediastinum, with imaging diagnosis suggestive of left pectoralis major muscle tumor. Ultrasound-guided fine-needle biopsy of the lesion was applied and the resulting diagnosis was infiltrating lobular carcinoma of the breast. It was concluded that the imaging result could be related to poor clinical manifestations and thus, to late diagnosis.

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