EXHIBIT 23.4

                    CONSENT OF OLSSON, FRANK AND WEEDA, P.C.

   We hereby consent to the use of our name under the caption "Legal Matters"
in the prospectus, which constitutes part of the Registration Statement for the
Common Stock of RITA Medical Systems, Inc. on Form S-1. We further consent to
the aforementioned use of our name in any amendments to the aforementioned
Registration Statement and to the incorporation by reference of this consent
into a related registration statement that is effective upon filing pursuant to
Rule 462(b) under the Securities Act of 1933, as amended.

                                          /s/ Olsson, Frank and Weeda, P.C.
                                          Olsson, Frank and Weeda, P.C.

Washington, D.C.
July 26, 2000