Introduction The renewal of penile prosthesis is a foreseeable intervention because of the limited survival time of the different implants. It usually becomes necessary simply for material fatigue after long-term regular use; in some cases, premature intervention might be necessary because of infection or other perioperative complications. Aim In the case presented here, the removal of a Dynaflex penile prosthesis showed a missing rear-tip extender on the right-hand tube. Main Outcome Measures and Methods A cavernoscopy of the right cavernous body was performed by using a conventional urethrocystoscope. The found rear-tip extender was extracted by using alligator forceps via the cystoscopic device. Results A new AMS CX hydraulic cavernous body prosthesis was successfully implanted. It has proven fully functional up to the current follow-up control. Conclusions This case shows that cavernoscopy is a gentle intraoperative procedure for diagnosing and removing material in penile prosthesis surgery.

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