NR4A1 and metastatic malignant neoplasm in the lymph nodes: Yin deficiency is related to tissue grading, with a higher grade increasing the likelihood of its occurrence; qi deficiency is associated with pathological types; phlegm dampness is related to lymph node metastasis, with a higher number of metastases increasing its likelihood; and a balanced constitution is related to tissue grading and hormone receptor expression, with a higher grade increasing its likelihood (42, 43).