Per the clinic, the patient experienced a loose internal magnet.Subsequently on (b)(6)2016, the patient underwent revision surgery to tighten the internal magnet.During the procedure, it was reported that there was a benign cyst located between the skull and internal magnet.The cyst was fluid filled and believed to be putting pressure on the internal magnet, loosening it.The cyst was drained.The implanted device remains.As of report on (b)(6) 2016, the site is healing well with no signs of the cyst returning.
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