The Role of Magnetic Resonance Imaging in the Identification of Multicentric Lesions in Breast Cancer

Purpose: To study the effectiveness of magnetic resonance imaging of the mammary glands in detecting multicentric lesions in breast cancer. Matreial and Methods : From 2022 to 2023, a prospective study was conducted, including 57 breast cancer patients, who underwent magnetic resonance imaging of the mammary glands for the purpose of clarifying the diagnosis of the process, followed by surgical treatment in the Department of Oncology and reconstructive Plastic Surgery of the breast and skin of the P.A. Herzen Moscow State Medical Institute. In the postoperative period, the data of magnetic resonance imaging of the mammary glands and the results of a pathomorphological examination of the surgical material were compared. Results : Multicentricity was confirmed in 21 (38.9 й) patients out of 54 patients with breast cancer with multicentric lesion (sTm) according to magnetic resonance imaging of the mammary glands during a planned pathomorphological examination of the surgical material. In 3 patients (5.3 й), a multicentric lesion was revealed by the results of a pathomorphological examination, whereas magnetic resonance imaging determined one pathological focus. Surgical treatment in the volume of mastectomy, including subcutaneous /skin-preserving mastectomy with a reconstructive plastic component was performed in 44 (77.2 й), in 13 (22.8 й) cases organ-preserving surgery. Conclusion : Thus, in most cases, multicentricity according to instrumental examination (magnetic resonance imaging) was not confirmed during the pathomorphological examination of the surgical material, which led to the performance of a larger volume of surgical intervention, namely mastectomies or mastectomies with reconstruction. A more careful selection of patients who are shown magnetic resonance imaging in the diagnostic search is needed.