Staging the Axilla with selective sentinel node biopsy in patients with previous excision of non-palpable and palpable breast cancer (original) (raw)
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Value of sentinel lymph node biopsy in breast cancer patients with previous excisional biopsy.
PURPOSE: Sentinel lymph node biopsy (SLNB) in breast cancer patients with clinically negative axilla will ensure axillary dissection only for cases with lymph node metastasis and provide information about pathologic staging as accurate as the axillary dissection. It was shown that SLNB could be successfully performed regardless of the type of biopsy. The aim of this study was to investigate the feasibility of SLNB after excisional biopsy. METHODS: One hundred patients diagnosed with excisional biopsy or guide wire-localization and operated on with SLNB between February 2007 and March 2009 were retrospectively analyzed. SLNB was performed with 10 cc of 1% methylene blue alone or both methylene blue and 1 mCi of Tc-99m nanocolloid combination. Age, tumor localization and size, length of the biopsy incision, size of the biopsy specimen, multifocality, lymphovascular invasion, tumor grade, staining with methylene blue, localization, number and metastatic status of the lymph nodes stained, and success rate with a gamma probe were evaluated. RESULTS: Sentinel lymph node (SLN) could not be identified in 9 (16.9%) of patients in the methylene blue group (n=53). In the combination group (n=47), SLN could not be identified in one patient. Of 32 patients with negative SLNB, metastatic involvement was found to be present in 5 patients after axillary lymph node dissection (false negatives). The average numbers of SLNs found in the methylene blue group and combination group were 1.4 and 1.6, respectively. SLN detection and false negative rates in the methylene blue group were 83% and 15.7%, respectively. The rates for the combination group were 98% and 6.4%, respectively. None of the parameters related to patient, tumor or process were found to affect detection rates of SLN. CONCLUSION: Only SLNB using a combination method is a safe and reliable technique for breast cancer patients diagnosed with excisional biopsy.
Journal of Surgical Oncology, 2001
Recent studies have demonstrated that the sentinel lymph node (sN) can be considered a reliable predictor of axillary lymph node status in breast cancer patients. However, some important issues, such as optimization of the technique for the intraoperative identi®cation of the sN, and the clinical implications of sN metastasis as regards the surgical management of the axilla still require further elucidation. The objectives of this study was to assess (1) the feasibility of sN identi®cation with a combined approach (vital blue dye lymphatic mapping and radioguided surgery, RGS) and the speci®c contribution of either techniques to the detection of the sN, and (2) the correlation between the size of sN metastasis (micrometastasis 2 mm; macrometastasis b 2), primary tumour size, and the status of nonsentinel nodes (nsN) in the axilla. Methods: Between October of 1997 and December of 1999, 212 patients with breast cancer (average age: 61 years; range, 40±79 years) underwent sN biopsy before performing standard axillary dissection. In a subset of 153 patients, both vital blue dye (Patent Blue-V) lymphatic mapping and RGS were used to identify the sN, and the relative contribution of each of the two techniques was assessed. Results: Overall, the sN was identi®ed in 206 of 212 patients (97.1%); at histologic examination of all dissected nodes, 77 of 206 patients had positive nodes (37.3%). The false-negative rate was 6.5% (5/77), the negative predictive value was 96.3% (129/134), and accuracy was 97.6% (201/206). Among 72 patients with positive sN, micrometastases were detected in 21 cases and macrometastases in 51. When micrometastases only were observed, the sN was the exclusive site of nodal metastasis in 17 of 21 cases (80.9%); in the remaining 4 cases (19.1%), nsN metastases were detected in 3 of 14 pT1c patients (21.5%), and 1 of 5 pT2 patients (20%). Macrometastases were detected in patients with tumors classi®ed as pT1b or larger: the sN was the exclusive site of metastasis in 3 of 4 pT1b patients (75%), in 14 of 29 pT1c patients (48.2%), and in 3 of 18 pT2
Cancer, 2001
BACKGROUND. Sentinel lymph node (SLN) mapping and biopsy is emerging as an alternative to axillary lymph node dissection (ALND) in determining the lymph node status of patients with early-stage breast carcinoma. The hypothesis of the technique is that the SLN is the first lymph node in the regional lymphatic basin that drains the primary tumor. Non-SLN (NSLN) metastasis in the axilla is unlikely if the axillary SLN shows no tumor involvement, and, thus, further axillary interference may be avoided. However, the optimal treatment of the axilla in which an SLN metastasis is found requires ongoing evaluation. The objectives of this study were to evaluate the predictors for NSLN metastasis in the presence of a tumorinvolved axillary SLN and to examine the treatment implications for patients with early-stage breast carcinoma.
Breast Care, 2011
Hintergrund: Während der Lymphknotenstatus in der Axilla weiterhin einer der wichtigsten Prognosefaktoren beim Mammakarzinom ist, hat sich die Sentinel-Lymphknoten-Biopsie (sentinel lymph node biopsy, SLNB) zu einer der Hauptmethoden zur weitreichenden Reduktion der postoperativen Morbidität und Verbesserung der kurz-und langfristigen Lebensqualität entwickelt. Material und Methoden: Zwischen 1996 und 2010 wurden an unserer Institution 18 884 SLNBs bei Mammakarzinompatientinnen durchgeführt und damit die Validität und der positive Einfluss der Methode auf die Lebensqualität der Patienten bestätigt, obgleich Entscheidungsvorgänge zur adjuvanten Therapie stark von biologischen Eigenschaften des jeweiligen Tumors abhängig sind. Ergebnisse: Der vorliegende Artikel fasst publizierte Daten zusammen, die hauptsächlich an unserer Institution gesammelt wurden, unter Einbeziehung spezifischer klinischer Szenarien wie duktale intraepitheliale Neoplasien, intramammäre Sentinel-Knoten, multizentrische Mamma kar zinome, vorherige Brustoperationen, vorherige ästhetische Operationen an der Brust, zweite axilläre SLNB, schwangere Patientinnen, primäre Chemotherapie und männliche Patienten. Schlussfolgerungen: Wir sind der Überzeugung, dass SLNB die Standardmethode für das Axillastaging in praktisch allen klinischen Situationen ist, einschließlich derer, die in der Vergangenheit als Kontraindikationen für SLNB galten. Die einzige momentane Kontraindikation ist das Vorliegen von dokumentierten Axillametastasen.
The Ever-Changing Role of Sentinel Lymph Node Biopsy in the Management of Breast Cancer
Archives of Pathology & Laboratory Medicine, 2014
Context.—Axillary nodal status remains one of the most important prognostic indicators in the management of breast cancer. Axillary node metastases are seen in fewer than half of breast cancer cases, and axillary lymph node dissection is associated with significant morbidity. Sentinel lymph node biopsy (SLNB) has become the gold standard for axillary staging of breast cancer. Objective.—To present a detailed review of the existing studies on SLNB in relation to the various techniques, the pathologic evaluation of the sentinel node, and special situations that can involve SLNB. We discuss recent trials that have already had an influence on surgical and pathologic management of breast cancer. In this article, we also discuss our practice and experience at UMass Memorial Medical Center, Worcester, Massachusetts, from a pathologic and surgical perspective. Data Sources.—Published articles from peer-reviewed journals in PubMed (US National Library of Medicine). Conclusions.—Sentinel node...
Revista Brasileira de Ginecologia e Obstetrícia, 2013
PURPOSE: To explore the relationship between morphological characteristics and histologic localization of metastasis within sentinel lymph nodes (SLN) and axillary spread in women with breast cancer. METHODS: We selected 119 patients with positive SLN submitted to complete axillary lymph node dissection from July 2002 to March 2007. We retrieved the age of patients and the primary tumor size. In the primary tumor, we evaluated histologic and nuclear grade, and peritumoral vascular invasion (PVI). In SLNs we evaluated the size of metastasis, their localization in the lymph node, number of foci, number of involved lymph nodes, and extranodal extension. RESULTS: Fifty-one (42.8%) patients had confirmed additional metastasis in non-sentinel lymph nodes (NLSN). High histologic grade, PVI, intraparenchymatous metastasis, extranodal neoplastic extension and size of metastasis were associated with positive NLSN. SLN metastasis affecting the capsule were associated to low risk incidence of additional metastasis. After multivariate analysis, PVI and metastasis size in the SLN remained as the most important risk factors for additional metastasis. CONCLUSIONS: The risk of additional involvement of NSLN is higher in patients with PVI and it increases progressively according the histologic localization in the lymph node, from capsule, where the afferent lymphatic channel arrives, to the opposite side of capsule promoting the extranodal extension. Size of metastasis greater than 6.0 mm presents higher risk of additional lymph node metastasis. Resumo OBJETIVO: Explorar a relação entre características morfológicas e localização histológica da metástase dentro dos linfonodos sentinelas (LS) e disseminação axilar em mulheres com câncer de mama. MÉTODOS: Foram selecionados 119 pacientes com LS positivo, submetidas à dissecação completa dos linfonodos axilares entre Julho de 2002 a Março de 2007. Foram recuperados a idade das pacientes e o tamanho do tumor primário. No tumor primário, avaliamos os graus histológico e nuclear e a invasão vascular peritumoral (IVP). Nos LS, avaliamos o tamanho da metástase, sua localização no linfonodo, o número de focos metastáticos, número de linfonodos envolvidos e a extensão extranodal. RESULTADOS: Cinquenta e um (42,8%) pacientes tiveram metástases adicionais confirmadas nos linfonodos não sentinelas (LNS). Alto grau histológico, IVP, metástase intraparenquimatosa, extensão extranodal e tamanho da metástase foram associados com LNS positivos. Metástase afetando a cápsula do LS foi associada com baixo risco de incidência de metástase adicional. Após análise multivariada, IVP e tamanho da metástase no LS foram os fatores de risco mais importantes para metástases adicionais nos LNS. CONCLUSÕES: O risco de envolvimento adicional dos LNS é maior em pacientes com IVP e tal risco aumenta progressivamente de acordo com a localização histológica da metástase no LS, que inicia na cápsula, onde aporta o linfático aferente, e termina no lado oposto, promovendo a extensão extranodal. Tamanho de metástase maior ou igual a 6,0 mm revela maior risco de metástase nos LNS.