A (b)(6) year old male with mild persistent stress urinary incontinence (sui) after a radical prostatectomy underwent elective intraureteral bulking agent injections.After the initial mild improvement, the sui progressed and the patient required 5 diapers a day.The patient subsequently had an artificial urinary sphincter (aus) placement with improvement of his leakage.Two years later, the patient represented with worsening sui despite normal aus function.Upon urethroscopy, it was discovered that the patient had urethral erosion with crystals that enveloped his cuff.These were found to be macroplastique type crystals during pathologic evaluation.Three additional procedures, including aus removal, open and endoscopic procedures were required to remove residual macroplastique crystals.
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