What Is a False Negative Sentinel Node Biopsy: Definition, Reasons and Ways to Minimize It?
Identifieur interne : 000922 ( Main/Exploration ); précédent : 000921; suivant : 000923What Is a False Negative Sentinel Node Biopsy: Definition, Reasons and Ways to Minimize It?
Auteurs : Kamal Kataria [Inde] ; Anurag Srivastava [Inde] ; Darakhshan Qaiser [Inde]Source :
- The Indian journal of surgery [ 0972-2068 ] ; 2016.
Abstract
Sentinel node biopsy helps in assessing the involvement of axillary lymph node without the morbidity of full axillary lymph node dissection, namely arm and shoulder pain, paraesthesia and lymphoedema. The various methods described in the literature identify the sentinel lymph nodes in approximately 96 % of cases and associated with a false negativity rate of 5 to 10 %. A false negative sentinel node is defined as the proportion of cases in whom sentinel node biopsy is reported as negative, but the rest of axillary lymph node(s) harbours cancer cells. The possible causes of a false negative sentinel lymph node may be because of blocked lymphatics either by cancer cells or following fibrosis of previous surgery/radiotherapy, and an alternative pathway opens draining the blue dye or isotope to another uninvolved node. The other reasons may be two lymphatic pathways for a tumour area, the one opening to a superficial node and the other in deep nodes. Sometimes, lymphatics do not relay into a node but traverse it going to a higher node. In some patients, the microscopic focus of metastasis inside a lymph node is so small-micrometastasis (i.e. between 0.2 and 2 mm) or isolated tumour cells (i.e. less than 0.2 mm) that is missed by the pathologist. The purpose of this review is to clear some fears lurking in the mind of most surgeons about the false negative sentinel lymph node (FNSLN).
DOI: 10.1007/s12262-016-1531-9
PubMed: 27994336
Affiliations:
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The various methods described in the literature identify the sentinel lymph nodes in approximately 96 % of cases and associated with a false negativity rate of 5 to 10 %. A false negative sentinel node is defined as the proportion of cases in whom sentinel node biopsy is reported as negative, but the rest of axillary lymph node(s) harbours cancer cells. The possible causes of a false negative sentinel lymph node may be because of blocked lymphatics either by cancer cells or following fibrosis of previous surgery/radiotherapy, and an alternative pathway opens draining the blue dye or isotope to another uninvolved node. The other reasons may be two lymphatic pathways for a tumour area, the one opening to a superficial node and the other in deep nodes. Sometimes, lymphatics do not relay into a node but traverse it going to a higher node. In some patients, the microscopic focus of metastasis inside a lymph node is so small-micrometastasis (i.e. between 0.2 and 2 mm) or isolated tumour cells (i.e. less than 0.2 mm) that is missed by the pathologist. The purpose of this review is to clear some fears lurking in the mind of most surgeons about the false negative sentinel lymph node (FNSLN).</div></front></TEI><affiliations><list><country><li>Inde</li></country></list><tree><country name="Inde"><noRegion><name sortKey="Kataria, Kamal" sort="Kataria, Kamal" uniqKey="Kataria K" first="Kamal" last="Kataria">Kamal Kataria</name></noRegion><name sortKey="Qaiser, Darakhshan" sort="Qaiser, Darakhshan" uniqKey="Qaiser D" first="Darakhshan" last="Qaiser">Darakhshan Qaiser</name><name sortKey="Srivastava, Anurag" sort="Srivastava, Anurag" uniqKey="Srivastava A" first="Anurag" last="Srivastava">Anurag Srivastava</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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