Figure 2b. (a, c, e) Serial CT scans and (b, d, f) power Doppler US images in patient with partial response to thalidomide show HCC (a, b) before treatment, (c, d) at day 27 of treatment, and (e, f) at day 97 of treatment. Imaging level was varied slightly between CT examinations to depict the maximal dimensions of the tumor. Arrows in b, d, and f indicate the vascular signal.