Figure 1.
A 51-year-old woman with a right ACC. (a) Non-contrast-enhanced, (b) portal venous phase, and (c) 15 min delayed contrast-enhanced axial CT images. The oval mass had attenuation values of 35, 82, and 61 HU, respectively. The resultant PEW and RPEW values were 44.7 and 25.6%, respectively. The dotted line indicates the hand-drawn region of interest. The posterior aspect of the liver was compressed by the tumour, however, without CT criteria for adjacent organ invasion (which was confirmed at adrenalectomy). There was no liver invasion on pathology.