Related Experiment Video
Updated: May 15, 2026
Single-port Non-liposuction Endoscopic Axillary Lymph Node Dissection in Breast Cancer Surgery
Published on: April 3, 2026
[Intramammary lymph node sentinel metastasis without metastasis in axilla. Axillary lymph node dissection or
René Aloisio da Costa Vieira1, Dionísio Nepomuceno Viviani, Suellen Strada Ferreira
1Departamento de Mastologia e Reconstrução Mamária do Núcleo de Mastologia, Hospital de Câncer de Barretos, Fundação Pio XII, Barretos, SP, Brasil.
Abstract:
The sentinel lymph node biopsy is a standard treatment for patients with breast cancer and clinically negative axilla lymph node. The presence of an extra-axillary and intra-axillary (IM) sentinel lymph node (SLN) occurs in up to 2.6% of cases. In the presence of a metastatic IM SLN, axillary positivity may occur in up to 81% of cases. Due to the limited number of cases reported, there is no standard treatment for the association of metastatic SLN IM and non-metastatic axillary SLN . We add here two cases to the literature, one of them with metastatic disease in the axilla. The use of a nomogram demonstrated that the risk of axillary metastasis was less than 10% and the addition of these cases to the literature showed that in this situation the rate of axillary metastasis is 6.25%. We discuss the pros and cons of further axillary dissection in this situation.
