Figure 6.

Graphical demonstration of the Tsukuba score. The lesion is shown as an oval, with colors indicating lesion stiffness (blue=increased, red=decreased) compared to the surrounding tissue. With increasing Tsukuba score (1-5), lesions have a higher probability of malignancy. The tri-laminar appearance of blue, green and red (BGR) bands (far right image) is diagnostic of a cyst when visualized using several ultrasound vendors (e.g. Hitachi, Toshiba) (figure adapted from Itoh et al, 2006 ⁹).