• Asian Pac. J. Cancer Prev. · Jun 2020

    Sentinel Node Biopsy in Early Breast Cancer Patients with Palpable Axillary Node.

    • Leyla Shojaee, Sheida Abedinnegad, Nahid Nafisi, Farshad Naghshvar, Gholamali Godazandeh, Siavosh Moradi, Kiarash Shakeri Astani, and Yasaman Godazandeh.
    • Department of Surgery, Mazandaran University of Medical Sciences, Sari, Iran.
    • Asian Pac. J. Cancer Prev. 2020 Jun 1; 21 (6): 1631-1636.

    BackgroundSentinel lymph node biopsy is a reliable method for evaluation of the axillary lymph node status in early stage breast cancer patients with non-palpable lymph nodes. The present study evaluated the status of sentinel and non-sentinel lymph nodes in T1T2 patients with palpable axillary lymph nodes.Materials And MethodsOne hundred and two women with early breast cancer were investigated in this study. Patients were selected for axillary sentinel lymph node biopsy and then surgery .Then the rates of false negative and true positive, and diagnostic accuracy of sentinel lymph nodes biopsy were evaluated. In addition, the hormone receptors status of the tumor was determined through IHC and data was analyzed in SPSS21.ResultsIn this study, the mean age of the patients was 49 years, 85% had invasive ductal carcinoma  in their pathology reports, 77% were ER/PR positive, 30% HER2 positive and 9.8% triple negative and 69% had KI67<14%. In frozen pathology, 15.7 and 84.3% were sentinel positive and negative, respectively, and in the final pathology, 41 and 58.8% were sentinel positive and negative, respectively. This difference arises from the false negative rate of the frozen pathology, which was about 31.3%. The sensitivity, specificity, and diagnostic accuracy of the frozen section were 24, 90 and 43%, respectively. Lymphovascular invasion is an important effective factor in the involvement of sentinel and non-sentinel lymph nodes. Statistical analysis showed that the probability of sentinel and non-sentinel lymph nodes involvement was higher in receptor positive patients and those with KI67>14% (p<0.002) whereas the rate of involvement was lower in triple negative patients.ConclusionSentinel node biopsy can be used in a significant percentage of breast cancer patients with palpable and reactive axillary lymph nodes.

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