sentinel lymph node biopsy

Pronunciation: (SEN-tih-nul limf node BY-op-see)

Removal and examination of the sentinel node(s) (the first lymph node(s) to which cancer cells are likely to spread from a primary tumor). To identify the sentinel lymph node(s), the surgeon injects a radioactive substance, blue dye, or both near the tumor. The surgeon then uses a probe to find the sentinel lymph node(s) containing the radioactive substance or looks for the lymph node(s) stained with dye. The surgeon then removes the sentinel node(s) to check for the presence of cancer cells.

Definition from: Cancer.gov

Sentinel lymph node biopsy of the skin. A radioactive substance and/or blue dye is injected near the tumor (first panel). The injected material is detected visually and/or with a probe that detects radioactivity (middle panel). The sentinel nodes (the first lymph nodes to take up the material) are removed and checked for cancer cells (last panel).Sentinel lymph node biopsy of the breast. A radioactive substance and/or blue dye is injected near the tumor (first panel). The injected material is detected visually and/or with a probe that detects radioactivity (middle panel). The sentinel nodes (the first lymph nodes to take up the material) are removed and checked for cancer cells (last panel).Biopsia de ganglio linfático centinela de la piel. Se inyecta una sustancia radiactiva o un tinte azul cerca del tumor (primer panel). La sustancia que se inyecta se identifica con la vista o con una sonda que detecta la radiactividad (panel del medio). Se extirpan los ganglios centinela (los primeros ganglios en absorber la sustancia) para determinar si tienen células cancerosas (último panel).Biopsia de ganglio linfático centinela de la mama. Se inyecta una sustancia radiactiva o un tinte azul cerca del tumor (primer panel). El material inyectado se identifica con la vista o con una sonda que detecta la radiactividad (panel del medio). Se extraen los ganglios centinela (los primeros ganglios en absorber la sustancia) para determinar si tienen células cancerosas (último panel). Date last modified: 2010-03-16Sentinel Lymph Node BiopsyBiopsia de ganglio linfático centinela