Status post radical prostatectomy. Diffusely thickened and trabeculated urinary bladder wall, consistent with previous obstructive uropathy.
There is a huge, encysted air-fluid collection in the right paravesical space extending to anterior pararenal region that abuts the right psoas muscle and pushes the right kidney and right hemicolon cranially and anteriorly, respectively. A collection inside the right psoas is also noted.
Similar findings are evident in the same region contralaterally, albeit the fluid collection is much smaller, with imperceptible wall and no visible air content.
Small bilateral pleural effusions are seen.
Other organs of the abdomen and pelvis are unremarkable.