Application of circulating tumor DNA liquid biopsy in nasopharyngeal carcinoma: A case report and review of literature

Figure 2 Electronic endoscope images (July 9, 2022). A: Right pharyngeal recess, tubal torus; B: Nasopharyngeal posterior wall. The nonsmooth new organism is located on the posterior wall of the right nasopharynx, on the right round pillow, and in the pharyngeal recess. The surface of the new organism presents a vascular disorder like appearance.