Question
A 68-year-old man comes to the physician for a wellness visit. Physical examination shows an enlarged and nodular prostate. Laboratory studies show elevated levels of prostate-specific antigen. A prostate biopsy confirms the diagnosis of prostate cancer and radical prostatectomy is planned. This patient should be counseled on the increased risk of injury to which of the following structures?
| A. | Cavernous nerve |
| B. |
Superior vesical artery |
| C. |
External anal sphincter |
| D. |
Hypogastric nerve |
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