Exhibit 23.4

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Amendment No. 1 to Form S-4 of Rita Medical Systems, Inc. of our report dated March 8, 2004 relating to the consolidated financial statements, which appears in Rita Medical Systems, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2003. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/    PricewaterhouseCoopers LLP

San Jose, California

June 22, 2004