Role for contrast-enhanced ultrasound in assessing complications after kidney transplant

Figure 4 Postoperative lymphocele in a 62-year-old patient who underwent cadaveric kidney transplantation for end-stage renal disease. A: On B-mode ultrasound, lymphocele was visible as an anechoic collection in the perirenal space (arrow), close to the external iliac vessels of the donor; B: Contrast injection reinforced diagnosis by showing absent vascularization and improved conspicuity with better delineation of the collection size and anatomical relationships.