Example for B-mode ultrasound and elastogram of a healthy, reactive LN. In B-mode ultrasound the cortex of the LN is slightly enlarge (maximum ~2.5mm). The predominant color of the medulla is green (with smaller areas in other shades) and the cortex is mainly blue (with smaller areas of green). Applying the criterion of a blue cortex, this case would be a false-positive.
Wojcinski et al. BMC Medical Imaging 2012 12:35 doi:10.1186/1471-2342-12-35