Sentinel lymph node is defined as:
A sentinel lymph node is defined as the first node in a regional lymphatic basin that receives lymph flow from the primary tumor. Sentinel node mapping can be done by injection of radiolabeled tracers or colored dyes Sentinel node examination has also been used for detecting the spread of melanomas, colon cancers, vulvar cancer, penile cancer and other tumors.
First node in a regional lymphatic basin that receives flow from primary tumor
First lymph node to be biopsied in the tumor
First lymph node that is positive for malignancy in a tumor
Lymph node that is positive for malignancy and more than 2 cm in diameter
General Concepts