目的探讨B超发现的隐匿性乳腺肿物手术前B超引导定位的意义。方法对63例中的68个肿物术前采用B超引导金属导丝定位后手术活检。结果患者均为女性,年龄21~54岁,68个乳腺病灶经病理检查及术后B超复查证实全部被准确切除。病理结果:乳腺导管癌1例,不典型增生3例,乳腺导管内乳头状瘤2例,乳腺纤维腺瘤37例,乳腺腺病25例。结论超声引导定位针定位手术切除乳腺隐匿性肿物具有定位准确、可靠、创伤小、操作简单等优点,值得临床推广。 Objective To investigate the significance of B ultrasound guided localization of occult breast tumor detected by B ultrasound. Methods Sixty-three of 68 patients underwent surgical biopsy with B-guided metallic guidewire before surgery. Results All patients were female, aged from 21 to 54 years old. 68 breast lesions were confirmed by pathology and postoperative B-ultrasound. Pathological findings: 1 case of ductal carcinoma of the breast, 3 cases of atypical hyperplasia, 2 cases of intraductal papilloma, 37 cases of breast fibroadenoma and 25 cases of breast adenosis. Conclusion Ultrasound-guided positioning needle positioning mastectomy breast occult tumor with accurate positioning, reliable, less trauma, simple operation, etc., worthy of clinical promotion.