Ultrasound-guided Vacuum-assisted Breast Biopsy Research Articles

Ultrasound-Guided Vacuum-Assisted Breast Biopsy for Breast Intraductal Lesions: a Meta-Analysis of Underestimation and Pathological Nipple Discharge Cure Rates

Background: Breast intraductal lesions present a diagnostic challenge due to the diverse spectrum of histologic changes. Vacuum-assisted biopsy (VAB) has evolved as a pivotal diagnostic and therapeutic modality. Yet, concerns about the underestimation of malignancy using VAB persist. This review examines the underestimation rates of Ultrasound-guided VAB (US-VAB) for intraductal lesions and evaluates the effectiveness of VAB in addressing pathological nipple discharge (PND). Methods: Following PRISMA guidelines, a comprehensive search was performed across Scopus, PubMed, and Web of Science. Studies detailing the underestimation rates of intraductal breast lesions diagnosed by US-VAB and cure rates for PND post-VAB excision were selected. Statistical analysis comprised a random effects proportion meta-analysis. Results: In this research, 31 studies were deemed eligible: 26 for underestimation and 5 for PND cure rates post-US-VAB. Quantitative synthesis focused on studies reporting data on atypical ductal hyperplasia (ADH) or ductal carcinoma in situ (DCIS) due to limited availability for other pathologies. The pooled underestimation rate for ADH was 6.14% (95% CI: 1.59%-12.43%). The pooled underestimation rate for DCIS was 13.26% (95% CI: 6.69%-21.08%). PND's pooled cure rate post-US-VAB was 93.32% (95% CI: 82.34%-99.70%). Conclusion: This systematic review and meta-analysis show that US-VAB delivers low ADH underestimation rates, moderate DCIS underestimation rates, and acceptable PND cure rates in breast intraductal lesions.

Comparison Ultrasound-Guided Handheld Vacuum Assisted Breast Biopsy and Core Biopsy in Breast Cancer

Introduction. Needle biopsy, including core needle biopsy (CNB) and vacuum-assisted breast biopsy (VABB) with or without radiological support) is the initial investigative method of choice for the preoperative diagnosis of breast lesions. Ultrasound-guided VABB (US-VABB) has become widely accepted because of its high accuracy. In this review, the diagnostic performance indices of CNB were compared with US-VABBB techniques. Method. A literature search proceeded in online databases compiling studies from the last 20 years in the PubMed, EBSCOhost, ScienceDirect, and ProQuest databases. Eighteen eligible studies compared US-VABB and CNB for diagnostic accuracy. All studies were cohort retrospective. This literature search proceeded according to the PRISMA. Results. Eighteen retrospective studies in three categories: comparative studies of US-VABB and CNB and the diagnostic accuracy of US-VABB and CNB. The studies showed that US-VABB has higher sensitivity and specificity than CNB but lower inadequacy and underestimation rates in the comparative studies group. In addition, the diagnostic accuracy of US-VABB is higher than CNB when comparing the other two subgroups (sensitivity and specificity: 94.4%-100% vs. 82%-90% and 98%-100% vs. 96%-98%, respectively). Conclusion. US-VABB has higher overall diagnosis accuracy than CNB

Additional Excision Biopsy in Patients With Atypical Ductal Hyperplasia at Ultrasound-guided Vacuum-assisted Breast Biopsy.

We conducted this single-center, retrospective study to identify predictors of upgrading to malignancy and to discuss the necessity of additional excision biopsy in patients who were diagnosed with atypical ductal hyperplasia (ADH) at ultrasound (US)-guided vacuum-assisted breast biopsy (VABB) based on our 18-year, single-center experience. The current study was conducted in a total of 12,160 patients who were evaluated at our medical institution during an 18-year period between January of 2003 and December of 2020. We included the patients who were diagnosed with ADH at US-guided VABB using the Mammotome® (Devicor Medical Products, Inc., Cincinnati, OH, USA). We therefore included a total of 114 patients (n=114) with ADH in the current study. Of 114 eligible patients, 36 underwent additional excision biopsy and the remaining 78 did not. Of these 36 patients, 15 were found to have an upgrading to malignancy at a rate of upgrading of 41.7%. These include 7 cases (46.6%) of low-grade ductal carcinoma in situ (DCIS), 3 cases (20.0%) of intermediate grade DCIS, 1 case (6.7%) of microinvasive DCIS, 3 cases (20.0%) of multifocal lobular carcinoma in situ, and 1 case (6.7%) of mucinous carcinoma. Finally, only suspicious microcalcification on mammography was a significant predictor of upgrading to malignancy (p=0.023). An additional excision biopsy is recommended to reduce the rate of upgrading to malignancy in patients who were diagnosed with ADH through a US-guided VABB.

Early results of ultrasound-guided, vacuum-assisted breast biopsy for mammographic microcalcifications: combination with wire localization

Purpose: This study examined the usefulness of ultrasound-guided vacuum-assisted breast biopsy for mammographic microcalcification.Methods: case series from June- 2019 to June-2020 at Breast department Cho Ray hospital. The patients with BI-RADS Category 4 Mammographic microcalcification were included. Most microcalcifications were not observed on ultrasound. Sono-guided J-wire localization was first performed for the suspicious microcalcification area, and the location of the J-wire and calcification was determined with mammography in most cases. Sono-guided VABB was performed after removing the J-wire without a stereotactic device. On the other hand, Sono-guided VABB was performed directly without J-wire localization when microcalcification lesions were identified by mass on ultrasonography. In all cases, calcification was confirmed by specimen mammography and the pathology was performed. A follow-up examination was performed to confirm the presence of complications.Results: A total of 20 lesions of 18 patients with BI-RADS Category 4 Mammographic microcalcification were included. Mean age: 49,44 ± 9,49 (35-66). Mean size of lesions 10,83 ± 3,60 mm, (4-15mm). In 20 lesions, 6 lesions (30%) were diagnosed as a malignancy (2 cases of ductal carcinoma in situ, 3 cases of ductal carcinoma invasive, 1 case of atypical ductal hyperplasia). The remaining 14 lesions (70%) were diagnosed as benign (fibroadenoma: 4; fibrocystic exchange 7, fibrocystic desease: 1, typical hyperplasia : 2). There were no significant complications during follow up after VABB.Conclusion: Sono-guided VABB can be used effectively if combined with wire localization for microcalcification lesions.

Does Mammotome biopsy affect surgery option and margin status of breast conserving surgery in breast cancer?

The Mammotome, an image-guided, usually ultrasound-guided vacuum-assisted breast biopsy (US-VABB) system, has been widely used in the early diagnosis of breast disease and the complete excision of benign lesions. However, in some malignant lesions underestimated by U.S., whether Mammotome biopsy would affect the surgery option, especially the margin status in breast-conserving surgery (BCS), has never been studied. Between 2015 and 2019, 198 patients with 200 lesions who have been diagnosed with breast cancer by Mammotome elsewhere received surgery by pathological confirmation in our center. The clinicopathological characteristics, surgery options, therapies, and the details of the specimen, such as margin status of BCS, tumor residual after VABB, and hematoma were reviewed. Among 200 lesions, 90% were evaluated below US-BIRADS 4b before Mammotome biopsy and 94.5% with a tumor size ≤3 cm. 131 patients received mastectomy (66.2%) and 67 received BCS (33.8%). Hematoma and tumor residual were observed in 37.5% and 71.5% of all lesions, respectively. There is a higher incidence of hematoma in the mastectomy group than in the BCS group (44.4% vs. 23.9%, P=0.005). In BCS group, the positive margin was found in 7 patients at first examination including four focals with re-excision, two extensive with mastectomy and one focal but refusing further surgery. The ultimate success rate of BCS was 95.5%. Margin positivity correlated with tumor residual (P=0.044) but not with hematoma. Mammotome biopsy might lead to hematoma and tumor residual; however, it is not the determinant factor for a surgery option, and BCS is feasible through a complete excision of tumor residual to acquire negative margin.

Clinical practice guidelines for ultrasound-guided vacuum-assisted breast biopsy: Chinese Society of Breast Surgery (CSBrS) practice guidelines 2021.

Clinical practice guidelines for ultrasound-guided vacuum-assisted breast biopsy: Chinese Society of Breast Surgery (CSBrS) practice guidelines 2021.

Wireless ultrasound-guided vacuum-assisted breast biopsy: Experience in clinical practice at European Institute of Oncology.

In the last few years, ultrasound-guided vacuum-assisted breast biopsy (US-VABB) has replaced surgical biopsy due to higher diagnostic accuracy and lower patient discomfort, and, at present, an even greater possibility is represented by the new wireless ultrasound-guided VAB device (Wi-UVAB). The purpose of our study is to determine the diagnostic accuracy of this new device in a sizeable representative number of patients. From January 2014 to June 2018, 168 biopsies were performed in our institution using the new Wi-UVAB device. We analyzed sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of biopsies obtained with the new device using surgical results as reference point, following patients for at least one year. In our cohort, we obtained a complete sensitivity of 97.5%, an absolute sensitivity of 94.3%, a complete specificity of 98%, and an absolute specificity of 98%. The positive predictive value of the procedure was 97.5% while the negative predictive value was 98%. The diagnostic accuracy was 98%. The Wi-UVAB is a safe procedure with high diagnostic accuracy, comparable to that of the traditional vacuum-assisted breast biopsy and even higher than that of core needle biopsy (CNB). Moreover, the Wi-UVAB is easy to use and shows low costs as core needle biopsy (CNB).

Vacuum-Assisted Breast Biopsy System: No Innovation Without Evaluation.

BackgroundVacuum-assisted breast biopsy (VABB) has recently been gaining more popularity as a modality to reach the final diagnosis, especially in indeterminate breast lesions, resulting in a decreased number of surgical interventions and unnecessary follow-ups.ObjectiveWhile our primary aim was to look into the outcomes of the VABB technique, our secondary aim was to assess the impact of the method on changes in patients’ management.Patients and methodsThis study was a retrospective database analysis of vacuum-assisted biopsies (VABs) carried out at our breast unit during the period between January 2011 and January 2018. All our cases were image-guided; the caliber of vacuum-assisted needles used was 8 gauge (G) and 11 G. Patient demographics, lesion characteristics, and outcomes were retrieved from patients’ notes and the hospital database.ResultsA total of 122 female patients were included in the analysis, out of whom 41.8% (51 patients) were screen-detected, and 58.1% (71 patients) were symptomatic presentations. The mean lesion size on imaging was 14.8 mm (SD: 12.6); 50% (61 patients) had stereotactic vacuum-assisted breast biopsy (SVAB), and 50% (61 patients) had ultrasound-guided vacuum-assisted breast biopsy (US-VAB). Post-procedure histology was upgraded in 19.6% (24 patients), downgraded in 18.8% (23 patients), and remained unchanged in 61.4% (75 patients).ConclusionVABB is a safe and efficient procedure for the diagnosis and management of indeterminate and suspicious breast lesions. It provides an adequate amount of tissue, which can help in upgrading or downgrading histopathologically diagnosed patients, thereby decreasing the need for surgery.

Mammary hamartoma: is ultrasound-guided vacuum-assisted breast biopsy sufficient for its treatment?

Mammary hamartomas were mostly benign tumors with rare rate of recurrence and malignant transformation. Ultrasound (US)-guided vacuum-assisted breast biopsy (VABB) has been reported sufficiently safe in treating many breast benign tumors but remained undefined in mammary hamartoma for its usual underdiagnosis in US. Thus, this study aims to evaluate the efficiency of US-guided VABB in treating mammary hamartomas. From May 2015 to March 2019, 3,388 lesions of 2,534 patients underwent percutaneous US-guided VABB, among which 31 mammary hamartomas proved by pathology were included in this study. Patients were followed up by US three, six and twelve months later, then at 1-year intervals. Lesions were classified to analyze the possible factors associated with excision rate, bleeding volume and complications. Of the 31 patients, recurrence was seen in 1 case in 1 year after the procedure and complete excision rate was 96.8% (30/31). The bleeding volume ranged from 1 to 15 mL (mean number ± standard deviation, 6.5±3.4 mL) and significant statistical differences were detected in patient age and the largest diameter of lesions. The main complications included pain (22.6%), hematomas (9.7%) and ecchymosis (3.2%). US-guided VABB ensures an outstanding complete excision rate and provides an alternative solution to treat mammary hamartomas.

Prediction of postoperative hematoma occurrence after ultrasound-guided vacuum-assisted breast biopsy in minimally invasive surgery for percutaneous removal of benign breast lesions.

The exact factors and mechanisms involved in the development of hematoma after breast ultrasound (US)-guided vacuum-assisted biopsy (VAB) are not clear. This study aimed to analyze the occurrence, prognosis, and risk factors of hematoma after US-guided VAB for the removal of benign breast lesions. This was a retrospective study of consecutive female patients with breast lesions (BI-RADS 3/4a/4b and confirmed as benign by core needle biopsy) removed by percutaneous excisional biopsy by US-guided VAB at the Beijing Chaoyang Hospital from April 2016 to December 2018. Univariable analyses were conducted to identify the factors associated with hematoma (age, nodule size, laterality, nodule location, number of nodules, BI-RADS classification of ultrasound, pathology, breast shape, menstrual period, efficacy time of bandage, and hemostatic agents). Multivariable analysis was performed to identify the factors independently associated with hematoma. A total of 293 patients (343 breast lesions) were included. Lesion removal was successful in all cases. Hematomas ≥1 cm were found in 39 patients. Finally, 38 (97.4%) hematomas were absorbed completely within 6 months. The multivariable logistic regression analysis revealed that lesion size (P<0.001; OR: 5.775; 95% CI: 2.752-12.121), number of lesions (P=0.011; OR: 3.205, 95% CI: 1.311-7.834), and the efficacy time of bandage 12-24 h (P=0.003; OR: 5.257, 95% CI: 1.792-15.421) were independently associated with hematoma occurrence after US-guided VAB excision of breast lesions. A lesion size cut-off of 23.4 mm (AUC 0.764, 95% CI: 0.692-0.837; 59.0% sensitivity; 80.3% specificity; 77.5% accuracy; P<0.001) could predict hematoma occurrence. US-guided excisional VAB can effectively remove benign breast lesions. The factors independently associated with postoperative hematoma are lesion size, lesion number, and effective postoperative compression time of bandage.

Both a biopsy method and a therapeutic procedure in BI-RADS 4A and 4B lesions: Ultrasound-guided vacuum-assisted breast biopsy.

This study aimed to evaluate outcomes, complications, and follow-up results of ultrasound-guided vacuum-assisted breast biopsy (UG-VABB) in BI-RADS 4 A and B lesions. Between Agust 2014 to January 2018, fifty BI-RADS 4A and BI-RADS 4B lesions of 41 patients biopsied with 10G vacuum needle by a single radiologist were retrospectively evaluated. All patients were females and mean age of the 41 patients was 50.12 ± 8.63. Of all lesions, 84% was benign, 6% was ADH, 4% was in-situ cancer, and 6% was diagnosed as malign. Follow-up duration after VABB was 0-51 months and mean was 20.92 months. Complications were as vasovagal-induced seizure in 3 patients (7.3%) and intramammary hematoma in 16 patients (39%). Hematoma was diagnosed in 3 patients (7.3%) at the 6th month follow-up and it was resolved in all patients at the 12th month follow-up. Higher breast density resulted in higher hematoma rates. There was no relationship between lesion BI-RADS subgroups, lesion size or sample number and hematoma development. During the follow-up, residue lesion in 1 (2.4%) patient and scar tissue in 2 (4.9%) patients was detected. US-guided VABB, with low complication rates and low scar development, is also a therapeutic excision method without remaining residue, which should be primarily preferred in smaller than 2 cm BI-RADS 4A and 4B lesions whose malignancy rates are relatively low. Hematoma, which is the most frequent complication, resorbed entirely in the 12th month in all patients.

Use of urinary balloon catheter to prevent postoperative bleeding after ultrasound-guided vacuum-assisted breast biopsy.

Postoperative bleeding is the most frequent serious complications after vacuum-assisted breast biopsy (VABB). The aim of this study was to evaluate the clinical effect of using urinary balloon catheter to prevent postoperative bleeding after ultrasound-guided VABB. From May 2016 to June 2018, 324 patients who underwent ultrasound-guided VABB were randomized into the study group and control group. In the study group, an urinary balloon catheter was inserted into the excision cavity to prevent bleeding and hematoma. In the control group, compression with thorax pressure bandage was used for hemostasis. Postoperative subcutaneous ecchymosis and hematoma were recorded and compared between the two groups. The rates of postoperative ecchymosis and hematoma in the study group were significantly lower than that in the control group (5.6% vs 13.0%, P<.05; 8.0% vs 20.4%, P<.05). Among patients with lesions≤1.5cm, the rates of postoperative ecchymosis and hematoma were 2.9% and 4.3% in the study group, 6.5% and 11.7% in the control group, but there was no statistically significant difference between the two groups (P>.05). Among patients with lesions >1.5cm, the rates of postoperative ecchymosis and hematoma in the study group were significantly lower than that in the control group (7.6% vs 18.8%, P<.05; 10.9% vs 28.2%, P<.05). Hemostasis with balloon urinary catheter is a safe and effective method to prevent postoperative bleeding after VABB.

Amyloid tumor of the breast

BackgroundAmyloid tumor of the breast is a rare disease, which was first reported in 1973. To date, only six cases have been reported in Japan.Case presentationA 45-year-old woman who had a medical history of Sjogren’s syndrome presented with a lump of 3 cm in diameter on the outer side of the right breast. Mammography showed no abnormality. Ultrasonography showed a well-defined and rough hypoechoic mass of 32 mm in diameter at the site of the lump. With suspicion of breast cancer, an ultrasound-guided vacuum-assisted breast biopsy was performed. For pathological diagnosis, hematoxylin and eosin staining showed deposits of nonstructural substances in the interstitium. The specimen stained red with Congo red staining and showed green birefringence under a polarizing microscope. Thus, the mass was diagnosed as an amyloid tumor. Since the patient had Sjogren’s syndrome, it was considered a breast finding of autoimmune disease. We considered further therapy to be unnecessary, and annual follow-up was recommended.ConclusionsWe diagnosed the mass as an amyloid tumor by an ultrasound-guided vacuum-assisted breast biopsy without resection. The patient had no systemic symptoms suspected systemic amyloidosis, and we diagnosed localized amyloidosis. An amyloid tumor of the breast may show findings suggestive of breast cancer. Pathological diagnosis before surgery is important to avoid excessive invasion. If deposits of nonstructural substances are observed by hematoxylin and eosin staining, Congo red staining should be added.

Ultrasound-Guided Vacuum-Assisted Biopsy in Small Breast: A Cost-Saving Solution

BackgroundThe study aimed to evaluate the feasibility and reliability of ultrasound-guided vacuum-assisted breast biopsy (US-VABB) for sampling of microcalcifications indicative of cancer when stereotactic vacuum-assisted breast biopsy cannot be performed because of reasons such as thin breast tissue, insufficient thickness at compression, and microcalcification situated close to the chest wall or in breast tissue of the axillary tail. Patients and MethodsThe study population was selected from among 187 patients with microcalcifications detected on mammogram. The findings were classified using the American College of Radiology criteria as Breast Imaging Reporting and Data System 3, 4, or 5. 30 Thirty were not eligible for stereotactic guidance because of reasons such as small breast size, compression thickness <2 cm, or microcalcification located in the axillary tails or close to chest wall. In 23 patients microcalcifications were detected at ultrasound, and US-VABB was performed. The other 7 patients underwent surgical biopsy. In the 23 patients who underwent US-VABB, multiple core samples were taken after a specimen mammography to ensure that microcalcifications were included. ResultsBiopsy was successful in all cases of US-VABB. The procedure was well tolerated, and there were no complications. ConclusionUS-VABB should be preferred over diagnostic surgical biopsy when microcalcifications are sonographically visible and stereotactic guidance is contraindicated. The procedure appears to be reliable and accurate, with added advantages such as low cost and absence of radiation exposure.

Recurrence Rates and Characteristics of Phyllodes Tumors Diagnosed by Ultrasound-guided Vacuum-assisted Breast Biopsy (VABB)

Recently, the development of ultrasonography (US)-guided vacuum-assisted breast biopsy (VABB) has enabled the excision of benign breast tumors with normal surrounding breast tissues; thus, complete excision is possible without residual tumor tissue. We sought to identify the clinicopathological characteristics and recurrence rates of benign phyllodes tumors diagnosed by US-guided VABB. Data from 11,221 US-guided VABBs performed at the Gangnam Cha Medical Center over 12 years were analyzed. Eighty-three lesions were diagnosed as benign phyllodes tumors; 67 with >24 months of follow-up data were investigated. All lesions were excised using an 8-gauge probe without residual tissue; patients underwent follow-up US every 3-6 months. Five patients (7.46%) experienced local recurrence during a mean follow-up period of 27.8 months; no distant metastases occurred. The mean tumor size was 3.0 cm in the recurrence group and 1.87 cm in the non-recurrence group (p=0.05). Benign phyllodes tumors excised and diagnosed using VABB showed a low recurrence rate during the follow-up period; thus, these tumors, particularly those <3 cm, can be safely monitored with ultrasonography instead of performing immediate re-excision.

Ultrasound-guided vacuum-assisted breast biopsy with a small-caliber device: A multicenter consecutive study of 162 biopsied lesions.

Objective:In this study, we aimed to analyze technical and diagnostic potential, and safety of the small-caliber vacuum-assisted biopsy (SCVAB) device in a multicenter consecutive study taking into consideration the type and location of breast lesion.Methods:We collected data from 5 breast imaging centers where radiologists used the SCVAB device for biopsies in 162 patients. We analyzed the conditions for using the SCVAB device according to the characteristics of the lesions, the volume of excision, and the analyzability obtained by biopsy samples.Results:The biopsies of 80 circumscribed masses, 61 complex lesions, and 24 microcalcification foci were included in the study. The reasons for choosing SCVAB as an initial technique were identified. A total of 47 lesions were removed with SCVAB; among them, 24 lesions were initially chosen for total excision. SCVAB was used as a second-choice biopsy method after core-needle biopsy failure in 20 cases. If SCVAB had not been available, vacuum-assisted biopsy would have been the most frequently used technique (106 under ultrasound, and 18 under stereotactical guidance).Conclusions:The SCVAB system is an alternative to classical vacuum biopsy, enabling representative samples to be obtained from lesions that are difficult to access, complex, small, or in cases of unsuccessful previous biopsy. The SCVAB system was determined as the chosen technique by the radiologists in this study due to feasibility, ergonomics and absence of side effects detected in this study.

Image-guided vacuum-assisted breast biopsy in the diagnosis of breast microcalcifications.

ObjectiveThe present study was performed to assess the accuracy and clinical value of image-guided vacuum-assisted breast biopsy in the diagnosis of mammography-detected breast microcalcifications.MethodsThis prospective study involved 100 patients with suspicious mammography-detected microcalcifications who underwent image-guided vacuum-assisted breast biopsies from January 2013 to October 2016. Stereotactic vacuum-assisted breast biopsy (SVAB) was performed in 64 patients, and ultrasound (US)-guided vacuum-assisted breast biopsy (US-VAB) was performed in 36 patients in whom application of SVAB was difficult. The microcalcifications were detectable by mammography or US. The mean follow-up duration was 32 months (range, 9–57 months). The biopsy results were correlated with the pathological examination results.ResultsThe positive predictive value of microcalcifications detected by mammography and US in the diagnosis of breast cancer was 37.0% (37/100) and 52.8% (19/36), respectively. The negative predictive value of microcalcifications detected by US in the diagnosis of breast cancer was 71.9% (46/64). No recurrence was observed in the 37 patients with breast cancer. No evidence of malignancy was found among the 63 patients with benign lesions.ConclusionImage-guided vacuum-assisted breast biopsy is accurate and minimally invasive. It can be used as a safe approach for diagnosis in patients with breast microcalcifications.

Clinicopathological Analysis of Ultrasound-guided Vacuum-assisted Breast Biopsy for the Diagnosis and Treatment of Breast Disease.

To evaluate the usefulness and safety of vacuum-assisted breast biopsy (VABB) for breast lesion diagnosis and treatment. Clinical and histopathological data of 8,748 patients, who underwent 11,221 VABB procedures were analyzed. Most patients (58.2%) were <40 years old. Most lesions (39.6%) were 0.6-1.0 cm in diameter while 3.2% were ≥3.0 cm; fibroadenomas were the most common (46.6%). Eight (14% of 57) cases of atypical ductal hyperplasia were underestimated. The positive predictive values (PPVs) of breast imaging reporting and data system (BI-RADS) ultrasound category were 0.6%, 3.4%, 34.8%, 66.2%, and 93.8% for category 3, 4a, 4b, 4c, and 5 lesions, respectively. The mean number of core specimens was 9.5±8.8; the mean procedure time was 3.4±2.7 min. No residual lesions were found in 94.4% of the 7,480 patients. VABB could replace ultrasound-guided core biopsy and surgical excisional biopsy for the diagnosis of breast disease and the treatment of benign breast lesions.

Ultrasound-guided mammotome for diagnosis and minimally invasive excision of mammary clustered calcifications.

e13034 Background: To validate the ultrasound-guided vacuum-assisted breast biopsy system (Mammotome) for diagnosis and minimally invasive excision of calcification in breast. Methods: In 20 patients, breast calcification lesions diagnosed by mammography were excised by ultrasound-guided Mammotome system with 8-gauge probe. The samples were taken mammography and followed by pathological examination. Results: All lesions were removed accurately and thoroughly with satisfactory cosmetic outcomes. No clinically significant hematoma developed. Each mass was resected through 9.15±2.70 cores on average over a mean of 11.65±3.88 minutes. Two cases of them were histologically diagnosed as ductal carcinoma in situ and 8 cases were fibroadenoma and 10 cases were adenosis. Conclusions: Ultrasound-guided Mammotome system can profit to diagnose and treat breast calcification lesions which is ultrasound positive. Ultrasound detection rate of microcalcifications is up to the instrument resolution and the operator's experience and patience.

A new method for the prevention of skin laceration during vacuum-assisted breast biopsy.

To describe a new technique to prevent skin laceration during ultrasound-guided vacuum-assisted breast biopsy with the insertion of a spinal needle between the mass and the skin. The study includes 118 patients with 118 breast imaging-reporting and data system Category 3 masses located very close to the skin or areola, which were excised using the mammotome system with a spinal needle inserted just above the site of insertion of the probe. The mean distance between the most superficial portion of the mass to the under surface of the overlying skin was 1.3 ± 0.4 mm. The average procedure time was 13.5 ± 4.2 min. A complete excision was achieved in 100% of the cases, and the procedure was well tolerated by all the patients. No patient experienced serious adverse events such as a skin laceration. This is the first study to prevent skin laceration during vacuum assisted breast biopsy. Advances in knowledge: The method described in this study is simple, safe and well tolerated by patients.