Some of the meds that treat prostate cancer can make skin look orange. Maybe he is having a relapse. Are we sure Cheney's heart is still ok?
From the National Cancer Institute:
"If used for a long time, ketoconazole may cause liver problems, and aminoglutethimide can cause skin rashes. Men who receive total androgen blockade may have more side effects than men who have just one type of hormonal therapy."