What are the Supraclavicular Lymph Nodes? What are the Supraclavicular Lymph Nodes? What are the Supraclavicular Lymph Nodes? What are the Supraclavicular Lymph Nodes? What are the Supraclavicular Lymph Nodes? What are the Supraclavicular Lymph Nodes? What are the Supraclavicular Lymph Nodes? What are the Supraclavicular Lymph Nodes?