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Related Concept Videos

Detailed Structure and Function of Lymph Nodes01:23

Detailed Structure and Function of Lymph Nodes

Lymph nodes are bean-shaped structures that cluster along the lymphatic vessels in the inguinal, axillary, and cervical regions. Each node is divided into compartments by a capsule that extends trabeculae inward.
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...

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Related Experiment Video

Updated: Jun 26, 2026

The Application of 1% Methylene Blue Dye As a Single Technique in Breast Cancer Sentinel Node Biopsy
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The Application of 1% Methylene Blue Dye As a Single Technique in Breast Cancer Sentinel Node Biopsy

Published on: June 1, 2019

Axillary sentinel lymph node biopsy: an overview.

Francesca Rovera1, Francesco Frattini, Marina Marelli

  • 1Department of Surgical Sciences, University of Insubria, Varese, Italy. francesca.rovera@uninsubria.it

International Journal of Surgery (London, England)
|January 10, 2009
PubMed
Summary
This summary is machine-generated.

Sentinel lymph node biopsy is standard for early breast cancer staging. This review analyzes current results and challenges in this accurate, minimally invasive procedure.

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Area of Science:

  • Oncology
  • Surgical Pathology
  • Breast Cancer Research

Background:

  • Sentinel lymph node biopsy (SLNB) is the standard for axillary staging in early breast cancer.
  • SLNB offers high accuracy (95%) but has a 5-15% false-negative rate.
  • Accurate staging is crucial for effective breast cancer management.

Purpose of the Study:

  • To review updated literature on sentinel lymph node biopsy in breast cancer.
  • To identify current outcomes and persistent challenges associated with SLNB.
  • To provide insights into the evolving role of SLNB in surgical oncology.

Main Methods:

  • Systematic literature review of recent studies on sentinel lymph node biopsy.
  • Analysis of data on SLNB accuracy, false-negative rates, and clinical outcomes.
  • Synthesis of findings regarding unresolved issues and future directions in SLNB.

Main Results:

  • Sentinel lymph node biopsy demonstrates high diagnostic accuracy in early breast cancer.
  • The procedure's false-negative rate remains a key area for improvement.
  • Ongoing research focuses on refining techniques to minimize false negatives.

Conclusions:

  • Sentinel lymph node biopsy is a validated and essential tool in breast cancer staging.
  • Addressing the false-negative rate is critical for optimizing patient management.
  • Continued research is vital for advancing SLNB techniques and improving oncologic outcomes.