NCIt definition : Lymph Node mapping, also known as sentinel lymph node (SLN) mapping is a procedure
in which a radioactive tracer and a blue dye is injected around the tumor site. These
two substances travel from the tumor and drain into the sentinel, or main, lymph node.
Together they provide a marker for the location and presence of a sentinel lymph node,
allowing discovery of minute metastases areas.;
Alternative definition : NCI-GLOSS: The use of dyes and radioactive substances to identify lymph nodes that
contain tumor cells.;
Codes from synonyms : CDR0000354473; CDR0000045761;