This is a curious case, for several reasons:

• wandering liver ^1-4, which returned to the normal anatomical position on a repeat CT abdomen done several days after the second study shown here
• paravertebral mass which appeared in the interval
• huge prostate, having enlarged to several times its original volume in just a few months
• extremely long dolichosigma

The liver must have had long attachments (ligaments) that enabled it to move and rotate.

As for the paravertebral mass, it was biopsied - histopathology report as follows:
Metastatic carcinoma, clear cell type, most probably of renal origin ⁵.
Immunostains: Positive: CA-9, EMA, CK7 (focally). Negative: CK20.