ĐẶC ĐIỂM TỔN THƯƠNG VÚ KHÔNG TẠO KHỐI TRÊN SIÊU ÂM

Abstract

Objective: evaluate images of benign and malignant non-massive breast lesions on ultrasound. Subjects and methods: Retrospective descriptive study on 43 patients diagnosed with non-massive breast lesions who underwent biopsy and had histopathological resultsfrom April 2021 to November 2023 at Radiology Center – Hanoi Medical University Hospital. Results: The study was conducted on 43 patients with non-massive breast lesions on ultrasound and pathological results divided into two groups: benign, accounting for 67.4% and group malignant 32.6%. The most common location is the upper outer quadrant (20/29 in the benign group and 7/14 in the malignant group). The most common hypoechoic lesions account for 65.1% (with 16/29 benign and 12/14 malignant), Mixed echogenic was 35% (13/29 benign and 2/14 malignant), no suspicion any hyperechoic lesions. The focal distributionis is the most common form, accounting for 51.2%, the linear-segmental distribution and regional distribution are found at 27.9% and 20.9%, respectively. The rate of malignancy in focal and regional distribution distribution is similar, 6/14 (42.9%). There were 60.5% of lesions with posterior acoustic shadowing (20/29 benign and 6/14 malignant). There was no statistically significant difference between the echogenicity, distribution, posterior acoustic shadowing of the lesion and histopathological results. Calcification occurs in 16.3% of total cases and 100% results in malignancy. Lesions non-parallel are only seen in 7% of cases and all result in malignancy. Conclusion: Breast lesions without mass on ultrasound have a high rate of malignancy. The presence of calcifications, non-parallel increases the malignant prediction rate of nonmassive lesions.