How Biopsy Reshapes The Diagnostic And Therapeutic Landscape Of Breast Surgery

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Looking back at the history of breast surgery, from radical mastectomy to today's breast-conserving surgery and sentinel lymph node biopsy, every advancement has been accompanied by the pursuit of "minimizing trauma." Breast biopsy technology, especially the application of modern minimally invasive biopsy systems, is undoubtedly one of the core technologies in this transformation. The positive changes that occur after a biopsy have profoundly reshaped the entire diagnostic and therapeutic landscape of breast surgery.

First, the maturity of biopsy technology has made preoperative diagnosis a standard procedure. In the past, doctors often had to cut open a lump on the operating table, perform a frozen section, and wait for the pathology results to decide the extent of the surgery. This method was time-consuming and unreliable, easily leading to secondary surgeries. Now, through precise preoperative puncture biopsy, the doctor already possesses all key information-benign or malignant, size, location, molecular subtype, etc. This allows the surgical plan to be perfectly formulated before the operation: Is neoadjuvant chemotherapy needed? Which breast-conserving technique is suitable? Is axillary lymph node dissection necessary? All decisions are based on conclusive evidence, greatly improving the success rate and radical cure rate of the first surgery.

Secondly, advances in biopsy technology have spawned a variety of minimally invasive treatment methods. For example, for certain specific benign tumors or early breast cancers, vacuum-assisted excision systems can be used for complete removal, i.e., "Mammotome" surgery. This procedure only requires a 3-5 mm incision to completely excise the lesion under ultrasound guidance; postoperatively, there is almost no scarring and recovery is extremely fast. In addition, precise localization technology based on the biopsy path has enabled thermal ablation techniques such as radiofrequency ablation, cryoablation, and microwave ablation to be applied in the treatment of breast tumors. These methods directly kill cancer cells through high or low temperatures without the need for incisions, truly achieving "non-invasive" or "extremely minimally invasive" treatment. Sometimes, the channel created by the biopsy needle directly becomes the entry path for therapeutic instruments.

Furthermore, the popularization of biopsy technology has promoted the deepening of the Multidisciplinary Team (MDT) model. Since biopsy provides abundant pathological and molecular information, medical oncologists, radiation oncologists, pathologists, radiologists, and surgeons can sit together to jointly formulate a comprehensive treatment plan for a single patient. For example, for a triple-negative breast cancer patient, if genetic testing after biopsy reveals high PD-L1 expression, she may receive immunotherapy combined with chemotherapy before surgery to achieve a pathological complete response (pCR), thereby obtaining a better long-term prognosis. This MDT model centered on biopsy results ensures that every patient enjoys the most advanced and reasonable treatment.

It can be said that breast biopsy technology is the cornerstone of modern breast surgery. It has moved surgical operations from "empiricism" to "evidence-based medicine," and from "destructive resection" to "functional preservation." Every successful biopsy is the best interpretation of the concept of "people-oriented, precise and minimally invasive," bringing countless women smaller traumas, better efficacy, and higher quality of life.