Intravesical foreign bodies are an uncommon, but significant, cause of urologic consultation. We present 3 patients who all inserted magnetic beads per urethra into the urinary bladder, which subsequently became retained. Endoscopic attempts were unsuccessfully tried in the first 2 cases, necessitating open cystotomy to remove the beads. The third went straight to open removal. Given the failure of minimally invasive techniques, we believe that open removal should be the first-line treatment for these types of foreign bodies.
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Levine et al. (2013) studied this question.