Publicado

2023-04-01

Pseudoaneurysm of the breast following a core needle biopsy: report of two cases

Pseudoaneurisma de mama tras biopsia por punción con aguja gruesa: reporte de dos casos

Palabras clave:

Vascular diseases, Pseudoaneurysm, Breast, Case reports (en)
Enfermedades vasculares, Aneurisma falso, Mama, Informes de casos (es)

Autores/as

Introduction: Core needle biopsy (CNB) is the gold standard for histopathological diagnosis of breast masses. However, rare complications may occur after undergoing CNB, including hematoma and pseudoaneurysm (PA) of the breast.

Cases presentation: Case 1: 66-year-old woman with a mass in the left breast who underwent CNB without complications. After approximately eleven months, she noticed a palpable and pulsatile mass in her left breast. She was diagnosed with a PA (1.6x1.3cm) by means of a Doppler ultrasound (US) and breast magnetic resonance imaging, which was surgically resected without any complication using local anesthesia. Case 2: 44-year-old woman with a mass in the left breast. After undergoing CNB, she developed ecchymosis and a palpable and pulsatile mass in her left breast. A Doppler US showed a 1.4x0.7cm cystic lesion suggestive of a breast PA. The mass was surgically resected without complications using local anesthesia and sedation.

Conclusion: Breast PA is an extremely rare complication of CNB, with only 17 cases reported in PubMed to date. However, it should be highly suspected in the presence of warning signs such as bleeding, hematoma, and a palpable and/or pulsatile breast mass after undergoing CNB.

Introducción. La biopsia por punción con aguja gruesa (CNB, por su sigla en inglés) es el estándar de oro para el diagnóstico histopatológico de las masas mamarias. No obstante, complicaciones raras como hematomas y pseudoaneurisma (PA) de la mama pueden ocurrir después de este procedimiento.

Presentación de los casos. Caso 1: mujer de 66 años con una masa mamaria izquierda y a la que se le realizó una CNB sin complicaciones. Aproximadamente 11 meses después la paciente notó una masa pulsátil palpable en el seno izquierdo. Mediante ecografía Doppler y resonancia magnética de las mamas se diagnosticó un PA (1.6x1.3cm). La masa fue extirpada quirúrgicamente sin complicaciones bajo anestesia local. Caso 2: mujer de 44 años con una masa mamaria izquierda. Después de realizarse una CNB, la paciente desarrolló equimosis y una masa pulsátil palpable en su mama izquierda. Mediante una ecografía Doppler se observó una lesión cística de 1.4x0.7cm sugestiva de PA mamario. La masa fue extirpada quirúrgicamente sin complicaciones bajo anestesia local y sedación.

Conclusión. El PA mamario es una complicación extremadamente rara de la CNB; tan solo 17 casos han sido reportados en PubMed hasta la fecha. Sin embargo, esta entidad debe ser altamente sospechada ante la presencia de signos de alarma como dolor, sangrado, hematoma y una masa mamaria palpable y/o pulsátil tras la realización de una CNB.

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Citas

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