It's possible to exchange BTC to USD, and send it to PayPal, but that's gaves not the best exchange rates.
Read this tread:
https://bitcointalk.org/index.php?topic=31617.0;allVirWox are a trustworthy website, but has really bad exchange rates because you have to exchange BTC to SLL (Second Life currency), then to USD/EUR/CHF, witch you can withdraw to PayPal.
Limit (long term) exchanges are charged by 3,9% fee, and PayPal withdraw with 1 USD fee.