Sentinel Lymph Node Biopsy

Sentinel Lymph Node Biopsy (SLNB), also referred to as Intraoperative Lymphatic Mapping (ILM), involves the localization of the lymph node that is first in the lymph node chain to receive lymphatic drainage from a primary tumor site. SLNB has been found to be a highly accurate indicator of the metastatic involvement of the entire lymph node basin in which it is situated. This technique relieves the patient of the trauma and complications associated with a full axillary lymph node dissection (ALND).

Wireless Pilot™ Probe (also available in cabled configuration)

The Navigator 14 mm lymphatic mapping probe is one of the most widely used gamma probes in the market. Our newest 14 mm probe, the Pilot™ Probe, offers the convenience of wireless technology combined with the reliability of the cabled system. This angled probe allows the surgeon to maintain excellent visual contact with the tissue being interrogated. It features internal collimation and high-energy tungsten shielding. The probe is also available in a straight configuration.


12mm SMX Lymphatic Mapping Probe

Featuring a small 12mm tip diameter and scintillation crystal detector, this probe is one of the most sensitive gamma detectors in the market. In challenging cases of low radioactivity due to tissue density, previous surgery, poor lymphatics, or extended wait time post-injection, this probe consistently yields superior counts.


Because all Dilon’s lymphatic-mapping probes are isotope agnostic, they can be used in cases that require multiple isotopes simply by switching the isotope indicator on the control box. This feature is ideal in procedures involving the use of I-125 radioactive seed for breast tumor localization and Tc-99, for sentinel lymph node biopsy.

For a description of Sentinel Lymph Node Biopsy, please go here


Clinical Resources

“The accuracy of sentinel lymph node biopsy in multicentric and multifocal invasive breast cancers” Tousimis E, et al (Oct. 2003)

“Radioguided Sentinel Lymph Node Biopsy in Breast Cancer Surgery” Giuliano Mariani, et al (Aug. 2001)

“Anaphylactoid Reactions to Isosulfan Blue Dye During Breast Cancer Lymphatic Mapping in Patients Given Preoperative Prophylaxis” Chandrajit P Rault, et al (Feb. 2004)

“Controversies in sentinel lymph node biopsy for breast cancer” Stefanie S Jeffrey, Sunita B Jones and Kenneth L Smith (2000)

“Sentinel Lymph Node Biopsy for Breast Cancer” Stephanie J Kellar (Aug. 2001)

“Sentinel node staging of primary melanoma by the “10% rule”: pathology and clinical outcomes” Jeffery S Stevens,  et al (Nov. 2006)