UCA1 and metastatic malignant neoplasm in the lymph nodes: The study of Liu et al. revealed that UCA1 levels were substantially more upregulated in the plasma of TNBC patients than the non-TNBC (NTNBC) patients, especially in those with lymph node metastasis at the time of diagnosis, which provides substantial evidence that UCA1 can be used as a TNBC-specific diagnostic biomarker [4].