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Troisier sign

Troisier sign is the clinical finding of a hard and enlarged left supraclavicular node (Virchow's node). It is considered a sign of metastatic abdominal malignancy.

It is sometimes referred to as Virchow's node, which is the name given by  Dr Rudolf Virchow (1821-1902), a German pathologist, to the left supraclavicular lymph node - not necessarily a pathologic lymphadenopathy 1.

The left supraclavicular lymph node drains via the thoracic duct, the abdomen, and thorax. It is the junction where incoming lymph is introduced back in the venous circulation through the left subclavian vein. Hence, any malignancy arising in these territories can be responsible for Troisier's sign.

Historical context

It was described by Dr Charles Emile Troisier, a French pathologist, in 1889 2.

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