Copyright ©The Author(s) 2016.
World J Gastroenterol. Aug 28, 2016; 22(32): 7175-7185
Published online Aug 28, 2016. doi: 10.3748/wjg.v22.i32.7175
Figure 1
Figure 1 Circulating tumour cells. Tumour cells and DNA fragments circulating in the peripheral bloodstream.
Figure 2
Figure 2 Potential roles of liquid biopsy. As a screening tool: As a non-invasive biopsy in patients not fit for invasive procedures or as an adjunct test where an FNA biopsy has proven inconclusive; As a biomarker used after surgical treatment to identify patients at high risk of local recurrence or distant metastasis; As a marker of prognosis in all patients prior to therapy; As a marker of chemotherapy efficacy; In the development of cell lines from circulating tumour cells; and In the detection of therapeutic targets or resistance mechanisms.