Figure 2.

A 57-year-old male with a history of robotic prostatectomy and pelvic lymphadenectomy presenting with pelvic pain. (a) Computed tomography of the abdomen and pelvis showing right pelvic fluid collection (white arrows). (b) Collection completely drained with a 10.5 Fr drainage catheter (white arrow heads), but a consistently high output of 195 cc/day was noted for the following 2 weeks. (c) The residual cavity filled with 12 cc of contrast with no evidence of communication with the surrounding structures (black arrows). A total of 12 cc of 3% sodium tetradecyl sulphate (STS) mixture (2 mL STS, 8 mL iodinated water-soluble contrast, 2 mL air) was subsequently injected (not shown) and allowed to dwell for 2 hours. Output subsequently dropped to 5 cc/day, and the drain was removed after 7 days.