Biopsy for 乳腺癌 Diagnosis: Magseed and Needle (Wire) Localization
If a mammogram or breast ultrasound reveals an abnormality that can't be felt, your doctor may suggest using either magnetic seed or needle (wire) localization to guide a biopsy of the suspicious tissue. 在这些程序中, a marker is placed by the area of concern to help the surgeon pinpoint and remove it. Both are two-step outpatient procedures (meaning you won't stay overnight in the hospital).
为你的手术做准备
If you've had mammograms at another institution in the past five years, 你必须把照片带到你的约会地点. 为了得到它们, call the facility where the test was performed and ask for a printout of the film images (not a CD). Your UCSF radiologist will compare the older images with the images we take during the procedure to help with interpretation.
如果你服用药物或补充剂, ask your doctor whether you should stop taking them before your procedure. This includes over-the-counter drugs, such as aspirin, and herbs used for health purposes.
在预约当日,请遵循以下指引:
- Don't apply any powder, deodorant, lotion or perfume under your arms or on your breasts. Substances in these products can appear in the images and make them harder to interpret.
- 穿两件式衣服(上下分开), 所以你只需要在考试时脱下你的上衣和胸罩.
- 不要佩戴首饰,除非它可以快速轻松地取下.
- Arrive 20 minutes before your appointment to allow time for registration and changing.
- 如果你怀孕了,告诉你的十大赌博平台排行榜.
You may be asked to complete a short breast health questionnaire when you arrive.
磁种子定位(Magseed)
A Magseed is a magnetic stainless-steel bead the size of a rice grain. It's used to mark the location of suspicious breast tissue and can be placed up to 30 days before the biopsy procedure. At 加州大学旧金山分校健康, Magseeds are placed by radiologists who specialize in breast imaging.
第一步:找到异常组织
这一步在我们的放射科进行, where the radiologist uses mammography or ultrasound to guide placement of the Magseed. If ultrasound is being used, you'll lie on your back with one arm over your head. The technologist will place cushions under the arm to help you stay comfortable. 如果使用乳房x光检查,您将坐着或站着.
一旦通过成像确定了可疑组织, 放射科十大赌博平台排行榜清洗你的乳房并注射麻醉药物. 注射可能会刺痛大约15到30秒.
然后放射科十大赌博平台排行榜使用薄板, 用空心针将Magseed插入可疑组织, 附加图像引导. 插入部位用胶布包扎.
大多数女性会感到压力或拉扯,但不会感到疼痛. Please tell your radiologist or imaging technologist if you experience any concerning symptoms.
一旦Magseed被放置, we perform a gentle mammogram (with only light compression) to confirm it's in the right spot.
步骤2:对异常组织进行活检
这一步在手术室进行. 一旦你被麻醉了, the surgeon uses a handheld magnetic probe to locate the Magseed and remove it, 还有可疑的组织. The specimen is sent to the radiology department to confirm that the targeted tissue was removed, 然后去找病理学家确认是否是癌症.
针(线)定位
Needle localization (also known as wire localization) is another method for marking suspicious breast tissue for biopsy. 在加州大学旧金山分校健康中心,它的使用频率低于Magseeds.
这一过程的两个步骤在同一天完成.
第一步:找到异常组织
这一步在我们的放射科进行, where the radiologist uses mammography or ultrasound imaging to pinpoint the abnormal tissue and guide placement of the wire. If ultrasound is used, you'll lie on your back with one arm over your head. The technologist will place cushions under the arm to help you stay comfortable. 如果使用乳房x光检查,您将坐着或站着.
一旦通过成像确定了可疑组织, 放射科十大赌博平台排行榜清洗你的乳房并注射麻醉药物. 注射可能会刺痛大约15到30秒.
下一个, the radiologist inserts a hollow needle through your skin to reach the abnormal tissue, 然后将一根细线穿过针穿到确定的部位. 金属丝的末端有一个小钩来固定它. 再次成像以确保导线正确放置, 电线用胶带固定好了. The wire remains in your breast until the biopsy is performed later that day.
在这个过程中,大多数女性会感到压力或牵拉,但不会感到疼痛. 有些人感到头晕或晕眩. Please tell your radiologist or imaging technologist if you have any concerning symptoms.
步骤2:对异常组织进行活检
在这一步骤中,通过手术切除异常组织. 这个过程被称为切除活检,需要长达一个小时.
You'll be brought by wheelchair from the radiology department to a surgical suite. Family or friends may be with you before and after the wire placement but not during the biopsy.
一旦你被麻醉了, the surgeon will follow the wire to locate the suspicious tissue and remove it. 然后将组织送到放射科进行x光检查, 让外科十大赌博平台排行榜和放射科十大赌博平台排行榜确认切除. Finally, it is sent to a pathologist to determine whether it's cancer.
对一些女性来说, 活检会引起不适, swelling and bruising; these side effects subside in a few days. 乳房的外观不会有太大的变化, 不过你会留下一个小手术疤痕. 你还会感到切口附近有一些肿块,这是由于疤痕组织造成的. Your surgeon can probably tell you in advance where the scar will be located.
风险和恢复
钢丝活检和Magseed活检通常耐受良好. Any discomfort is typically relieved with over-the-counter pain medications, 如泰诺(对乙酰氨基酚), and most patients return to their normal activities the following day. Be sure to follow your care team's instructions on which activities to avoid while you heal, 如何护理切口,应该服用哪些药物来止痛.
There's a slight chance of infection or excessive bleeding after these procedures. 请打电话给 乳房成像 或者是 乳房护理中心 如果出现以下任何症状,请立即处理:
- 肿胀不能消失
- 继续出血
- 发烧超过华氏101度(38度).摄氏3度)
- Pain that doesn't respond to acetaminophen or other non-aspirin pain relievers
加州大学旧金山分校健康医学专家已经审查了这些信息. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.