Introduction:

Percutaneous biopsy has become, nowadays, the most used diagnostic method to evaluate breast lesions suspected of malignancy.

Objective:

To characterize the Tru-cut biopsy results in patients with BI-RADS 4 and 5 categories without surgical criteria.

Materials and methods:

An observational, descriptive and cross-sectional study was carried out between January 2019 and December 2020 on 70 patients who presented who presented a lesion suspicious of malignancy by ultrasonography and required a thick-needle biopsy of the reported image. They were performed at the Breast Intervention Clinic of the Imaging Department of the Clinical Surgical University Hospital Comandante Faustino Pérez Hernández, from Matanzas. The variables age, BI-RADS category, histopathological result, tumor size and complications were analyzed.

Results:

The predominant age group was the 70-79 years-old one (27.1). 48 patients were classified with BI-RADS 5 category, for 68.6%. Infiltrating ductal carcinoma resulted the predominant histological type, with 40 patients representing 57.1% of the total. An average diameter of 28.91 mm was obtained from the biopsied lesions. All samples were useful, even in transverse diameters less than 2cm. In the series, few complications were reported.

Conclusion:

Biopsy performed with thick needle under ultrasound guidance with free-hands technique, is a reliable method for breast cancer diagnosis, safe and without serious complications. It is confirmed that BI-RADS 5 category coincides with breast cancer pathological diagnosis.

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