content: <HTML><HEAD>
  <TITLE>Form 8-K</TITLE>
  </HEAD>
   <BODY BGCOLOR="WHITE">
  
  <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000">SECURITIES AND
  EXCHANGE COMMISSION </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Washington, D.C. 20549
  </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B>Form 8-K </B></FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B>Current Report </B></FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Pursuant to Section 13 or 15(d) of the Securities Exchange
  Act of 1934 </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>May 15, 2003 </B></FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Date of Report </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000"><B></B>(Date of earliest event reported) </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B>RITA Medical Systems, Inc. </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman"
  SIZE="2" COLOR="#000000">(Exact name of registrant as specified in its charter) </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Delaware</B></FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>000-30959</B></FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>94-3199149</B></FONT></P></TD></TR>
  <TR>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(State or other jurisdiction</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">of incorporation)</FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(Commission File Number)</FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(I.R.S. Employer</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Identification No.)</FONT></P></TD></TR>
  </TABLE><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>967 N.
  Shoreline Blvd. </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Mountain View, CA 94043 </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(Address of principal executive offices, with zip code) </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>(650) 314-3400 </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000">(Registrant&#146;s telephone number, including area code) </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
  
  
  
  <p Style='page-break-before:always'>
  <HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">
  
  <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Item
  5.&nbsp;&nbsp;&nbsp;&nbsp;Other Events and Required FD Disclosure. </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman"
  SIZE="2" COLOR="#000000">On May 15, RITA Medical Systems, Inc., a Delaware corporation (&#147;<U>RITA</U>&#148;), announced a correction to its previously announced net loss for the three month period ended March 31, 2003. A copy of RITA&#146;s
  press release announcing these corrected financial results is attached as Exhibit 99.1 hereto and incorporated by reference herein. </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">This information is being filed under Item 5 but is intended to meet the requirements of Item 9, &#147;Regulation FD Disclosure&#148; and
  Item 12, &#147;Results of Operations and Financial Condition.&#148; </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000"><B>Item 7.&nbsp;&nbsp;&nbsp;&nbsp;Financial Statements, </B><B><I>Pro Forma</I></B><B> Financial Information and Exhibits </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B></B>(a)&nbsp;&nbsp;&nbsp;&nbsp;Financial Statements: Not applicable. </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT
  SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(b)<I>&nbsp;&nbsp;&nbsp;&nbsp;Pro Forma</I> Financial Information: Not applicable. </FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B></B>(c)&nbsp;&nbsp;&nbsp;&nbsp;Exhibits: </FONT></P><P
  STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px; margin-left:8%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">99.1&nbsp;&nbsp;&nbsp;&nbsp;Press Release of RITA Medical
  Systems, Inc. dated May 15, 2003. </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
  
  
  
  <p Style='page-break-before:always'>
  <HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">
  
  <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>SIGNATURES
  </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Pursuant to the requirements of the
  Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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  <TD COLSPAN="3"><FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD><FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" COLSPAN="3" WIDTH="44%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>RITA Medical Systems, Inc.</B></FONT></P></TD></TR>
  <TR>
  <TD HEIGHT="16"></TD></TR>
  <TR>
  <TD VALIGN="top" COLSPAN="3" WIDTH="44%"> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:2%; text-indent:-2%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Date: May 15, 2003</FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD><FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" WIDTH="2%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">By:</FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" WIDTH="44%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">/s/&nbsp;&nbsp;&nbsp;&nbsp;D<SMALL>ONALD</SMALL> S<SMALL>TEWART</SMALL></FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"
  ALIGN="left"></TD></TR>
  <TR>
  <TD><FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD><FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD><FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD><FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="44%"> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:2%; text-indent:-2%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Donald Stewart</FONT></P> <P
  STYLE="margin-top:0px;margin-bottom:0px; margin-left:2%; text-indent:-2%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Acting Chief Executive Officer,</FONT></P> <P
  STYLE="margin-top:0px;margin-bottom:0px; margin-left:2%; text-indent:-2%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Chief Financial Officer and</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:2%; text-indent:-2%"><FONT
  FACE="Times New Roman" SIZE="2" COLOR="#000000">Vice President, Finance and Administration</FONT></P></TD></TR>
  </TABLE><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
  
  
  
  <p Style='page-break-before:always'>
  <HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">
  
  <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>RITA MEDICAL
  SYSTEMS, INC. </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>INDEX TO EXHIBITS
  </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" ALIGN="center">
  
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  <TD VALIGN="bottom" ALIGN="center"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Exhibit&nbsp;Number</FONT></P><HR WIDTH="101" SIZE="1" NOSHADE COLOR="#000000"></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="88%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Description</FONT></P><HR WIDTH="73" SIZE="1" NOSHADE ALIGN="left" COLOR="#000000"></TD></TR>
  <TR>
  <TD VALIGN="top" ALIGN="center" WIDTH="12%"> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:2%; text-indent:-2%" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">99.1</FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="88%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Press Release of RITA Medical Systems, Inc. dated May 15, 2003.</FONT></P></TD></TR>
  </TABLE><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
  
  
  </BODY></HTML>
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metadata_filer: {"company-data": {"conformed-name": "RITA MEDICAL SYSTEMS INC", "cik": "0001056421", "assigned-sic": "3845", "irs-number": "943199149", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-30959", "film-number": "03705871"}, "business-address": {"street1": "967 N SHORELINE BLVD", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94013", "phone": "6503858500"}, "mail-address": {"street1": "967 NORTH SHORELINE BLVD", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94043"}}
text: Form 8-K
  SECURITIES AND
  EXCHANGE COMMISSION
  Washington, D.C. 20549
  Form 8-K
  Current Report
  Pursuant to Section 13 or 15(d) of the Securities Exchange
  Act of 1934
  May 15, 2003
  Date of Report
  (Date of earliest event reported)
  RITA Medical Systems, Inc.
  (Exact name of registrant as specified in its charter)
  Delaware
  000-30959
  94-3199149
  (State or other jurisdiction
  of incorporation)
  (Commission File Number)
  (I.R.S. Employer
  Identification No.)
  967 N.
  Shoreline Blvd.
  Mountain View, CA 94043
  (Address of principal executive offices, with zip code)
  (650) 314-3400
  (Registrant's telephone number, including area code)
  Item
  5.    Other Events and Required FD Disclosure.
  On May 15, RITA Medical Systems, Inc., a Delaware corporation ("
  RITA
  "), announced a correction to its previously announced net loss for the three month period ended March 31, 2003. A copy of RITA's
  press release announcing these corrected financial results is attached as Exhibit 99.1 hereto and incorporated by reference herein.
  This information is being filed under Item 5 but is intended to meet the requirements of Item 9, "Regulation FD Disclosure" and
  Item 12, "Results of Operations and Financial Condition."
  Item 7.    Financial Statements,
  Pro Forma
  Financial Information and Exhibits
  (a)    Financial Statements: Not applicable.
  (b)
  Pro Forma
  Financial Information: Not applicable.
  (c)    Exhibits:
  99.1    Press Release of RITA Medical
  Systems, Inc. dated May 15, 2003.
  SIGNATURES
  Pursuant to the requirements of the
  Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
  RITA Medical Systems, Inc.
  Date: May 15, 2003
  By:
  /s/    D
  ONALD
  S
  TEWART
  Donald Stewart
  Acting Chief Executive Officer,
  Chief Financial Officer and
  Vice President, Finance and Administration
  RITA MEDICAL
  SYSTEMS, INC.
  INDEX TO EXHIBITS
  Exhibit Number
  Description
  99.1
  Press Release of RITA Medical Systems, Inc. dated May 15, 2003.