TY - JOUR
T1 - Does a Positive Axillary Lymph Node Needle Biopsy Result Predict the Need for an Axillary Lymph Node Dissection in Clinically Node-Negative Breast Cancer Patients in the ACOSOG Z0011 Era?
AU - Pilewskie, Melissa
AU - Mautner, Starr Koslow
AU - Stempel, Michelle
AU - Eaton, Anne
AU - Morrow, Monica
N1 - Funding Information:
The authors declare no conflict of interest. This study was funded in part by NIH/NCI Cancer Center Support Grant No. P30 CA008748.
Publisher Copyright:
© 2015, Society of Surgical Oncology.
PY - 2016/4/1
Y1 - 2016/4/1
N2 - Background: American College of Surgeons Oncology Group (ACOSOG) Z0011 defined clinical node negativity by physical examination alone. Although axillary ultrasound with biopsy has a positive predictive value for lymph node (LN) metastases approaching 100 %, it may not appropriately identify clinically node-negative women with ≥3 positive LNs who require axillary lymph node dissection (ALND). We sought to identify the total number of positive LNs in women presenting with cT1–2N0 breast carcinoma with a positive preoperative LN biopsy to evaluate the potential for overtreatment when ALND is performed on the basis of a positive needle biopsy in patients who otherwise meet ACOSOG Z0011 eligibility criteria. Methods: Patients with cT1–2N0 breast cancer by physical examination with a positive preoperative LN biopsy were identified from a prospective institutional database. Clinicopathologic characteristics and axillary imaging results were compared between women with 1 to 2 total positive LNs and ≥3 total positive LNs. Results: Between May 2006 and December 2013, a total of 141 women with cT1–2N0 breast cancer had abnormal axillary imaging and a preoperative positive LN biopsy (median patient age 51 years, median tumor size 2.4 cm, 86 % ductal histology, 79 % estrogen receptor positive). Sixty-six women (47 %) had 1 to 2 total positive LNs, and 75 (53 %) had ≥3 total positive LNs. Women with ≥3 total positive LNs had larger tumors (2.4 vs. 2.2 cm, p = 0.03), fewer tumors with ductal histology (79 vs. 94 %, p = 0.01), more lymphovascular invasion (80 vs. 61 %, p = 0.01), and higher median body mass index (29.2 vs. 27.1 kg/m2, p = 0.04). Having >1 abnormal LN on axillary imaging was significantly associated with having ≥3 total positive LNs at final pathology (68 vs. 43 %, p = 0.003). Conclusions: Axillary imaging with preoperative LN biopsy does not accurately discriminate low- versus high-volume nodal disease in clinically node-negative patients.
AB - Background: American College of Surgeons Oncology Group (ACOSOG) Z0011 defined clinical node negativity by physical examination alone. Although axillary ultrasound with biopsy has a positive predictive value for lymph node (LN) metastases approaching 100 %, it may not appropriately identify clinically node-negative women with ≥3 positive LNs who require axillary lymph node dissection (ALND). We sought to identify the total number of positive LNs in women presenting with cT1–2N0 breast carcinoma with a positive preoperative LN biopsy to evaluate the potential for overtreatment when ALND is performed on the basis of a positive needle biopsy in patients who otherwise meet ACOSOG Z0011 eligibility criteria. Methods: Patients with cT1–2N0 breast cancer by physical examination with a positive preoperative LN biopsy were identified from a prospective institutional database. Clinicopathologic characteristics and axillary imaging results were compared between women with 1 to 2 total positive LNs and ≥3 total positive LNs. Results: Between May 2006 and December 2013, a total of 141 women with cT1–2N0 breast cancer had abnormal axillary imaging and a preoperative positive LN biopsy (median patient age 51 years, median tumor size 2.4 cm, 86 % ductal histology, 79 % estrogen receptor positive). Sixty-six women (47 %) had 1 to 2 total positive LNs, and 75 (53 %) had ≥3 total positive LNs. Women with ≥3 total positive LNs had larger tumors (2.4 vs. 2.2 cm, p = 0.03), fewer tumors with ductal histology (79 vs. 94 %, p = 0.01), more lymphovascular invasion (80 vs. 61 %, p = 0.01), and higher median body mass index (29.2 vs. 27.1 kg/m2, p = 0.04). Having >1 abnormal LN on axillary imaging was significantly associated with having ≥3 total positive LNs at final pathology (68 vs. 43 %, p = 0.003). Conclusions: Axillary imaging with preoperative LN biopsy does not accurately discriminate low- versus high-volume nodal disease in clinically node-negative patients.
UR - http://www.scopus.com/inward/record.url?scp=84946780277&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84946780277&partnerID=8YFLogxK
U2 - 10.1245/s10434-015-4944-y
DO - 10.1245/s10434-015-4944-y
M3 - Article
C2 - 26553439
AN - SCOPUS:84946780277
SN - 1068-9265
VL - 23
SP - 1123
EP - 1128
JO - Annals of Surgical Oncology
JF - Annals of Surgical Oncology
IS - 4
ER -