Ultrasonic "B" scanning in the diagnosis of complications in renal transplant patients.

B-mode ultrasonography has been used in the evaluation of complications following renal transplantations. The main indications for examining the patient are decreased renal function, clinically suspected abscesses, or suggestions of a mass in the region of the transplant. In most patients, worsening renal function is due to rejection. In 10 of 50 patients, however, lesions such as lymphoceles, postoperative hematomas, abscesses, and urine leakage were diagnosed. Ultrasonography proved to be a noninvasive and reliable method for the assessment of these complications.