RITA Medical Systems To Present at the Gerard Klauer Mattison Second Annual Healthcare Conference in New York City

MOUNTAIN VIEW, Calif., Apr 1, 2003 (BUSINESS WIRE) -- RITA Medical Systems, Inc. (Nasdaq:RITA) today announced that it is scheduled to make an investor presentation at the Gerard Klauer Mattison Second Annual Healthcare Conference on Tuesday, April 8, 2003 at 3:00 p.m. Eastern Time. The conference is being held at the Le Parker Meridien in New York City.

A live webcast of the Company's presentation at the Gerard Klauer Mattison Conference will be available via the link provided at the Company's website at www.ritamedical.com. A webcast replay of the presentation will also be available for ten days by accessing the same link.

About RITA Medical Systems

RITA Medical Systems develops, manufactures and markets innovative products for patients with solid cancerous or benign tumors. The proprietary RITA system uses radiofrequency energy to heat tissue to a high enough temperature to ablate it or cause cell death. While the Company's current focus is on liver cancer and metastatic bone cancer, the Company believes that its minimally invasive technology may in the future be applied to other types of tumors, including tumors of the lung, breast, uterus, prostate and kidney. The Company has received regulatory clearance in major markets worldwide, including the United States. In March 2000, RITA became the first radiofrequency ablation company to receive specific FDA clearance for unresectable liver lesions in addition to its previous general FDA clearance for the ablation of soft tissue. In October 2002, RITA again became the first company to receive specific FDA clearance, this time, for the palliation of pain associated with metastatic lesions involving bone. The Company has sold over 40,000 of its disposable devices throughout the world.

The statements in this news release related to the company's plans to extend its technology to applications beyond the liver are forward-looking statements involving risks and uncertainties that could cause actual results to differ materially from those in such forward-looking statements. Information regarding these and other risks is included in the Company's filings with the Securities and Exchange Commission.

RITA is a trademark of RITA Medical Systems, Inc.

CONTACT:          Allen & Caron Inc                       
                  Matt Clawson (investors), 949/474-4300                
                  matt@allencaron.com
                  Len Hall (media), 949/474-4300                        
                  len@allencaron.com
                  or
                  RITA Medical Systems, Inc.              
                  Don Stewart, 650/314-3400                           
                  dstewart@ritamed.com

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SOURCE: RITA Medical Systems, Inc.