Figure 4.

A 29-year-old woman (case 3) with FB sensation on neck that occurred 1 h after eating sausage and rice soup. The white arrow in each figure indicates the structure such as trachea and esophagus. The name of the structures is written at the end of the arrow or above the structure. (A) Axial view showing bulging esophagus with pooling of secretion and hyperechoic material suspected as food. (B) Longitudinal view showing hyperechoic material suspected as FB with reverberation artifact that did not disappear by swallowing efforts and esophageal bulging. FB = foreign body.