Multiple organ systems are markedly abnormal: There is diffuse enlargement and low-attenuation infiltration of the kidneys, low attenuation splenic lesions, thickening of the proximal small bowel, retroperitoneal adenopathy, diffuse enlargement and irregularity of the inferior rectus abdominis musculature and inguinal/pelvic adenopathy.
The non-contrast images were included for educational benefit, particularly how the renal abnormalities can still be appreciated (though subtle).