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Which of the following are called as ‘Signal nodes’?

 # Which of the following are called as ‘Signal nodes’?
A. Supraclavicular nodes
B. Jugulo-omohyoid
C. Jugulodigastric
D. Submandibular



The correct answer is A. Supraclavicular nodes

The left supraclavicular nodes or Virchow's or scalene nodes are also involved in malignant growths of distant organs, e.g. the stomach, the testis and other abdominal organs. Therefore, they are known as signal nodes. Scalene node biopsy is very helpful in the early diagnosis of such malignancies. 

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