EXHIBIT 23





                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



     To Cytogen CORPORATION:

     As independent public  accountants,  we hereby consent to the incorporation
     of our report  included in this Form 10-K,  into the  Company's  previously
     filed Form S-8 Registration  Statement (File No. 33-30595),  filed with the
     Securities   and  Exchange   Commission  on  August  18,  1989,   Form  S-3
     Registration  Statement (File No. 33-35140),  filed with the Securities and
     Exchange Commission on May 31, 1990, Form S-8 Registration  Statement (File
     No.  33-52574),  filed  with the  Securities  and  Exchange  Commission  on
     September 29, 1992, Form S-8  Registration  Statement (File No.  33-57004),
     filed with the Securities and Exchange Commission on January 12, 1993, Form
     S-3  Registration  Statement (File No.  33-77396) filed with the Securities
     and Exchange  Commission on April 6, 1994, Form S-8 Registration  Statement
     (File No. 33-63321),  filed with the Securities and Exchange  Commission on
     October 10, 1995, Form S-8  Registration  Statement  (File No.  333-00431),
     filed with the Securities  and Exchange  Commission on January 25, 1996 and
     Form S-8  Registration  Statement  (File  No.  333-04679),  filed  with the
     Securities and Exchange  Commission on May 29, 1996, Form S-8  Registration
     Statement  (File  No.   333-27673)   filed  with  Securities  and  Exchange
     Commission  on May 23,  1997,  Form S-3  Registration  Statement  (File No.
     333-43809) filed with the Securities and Exchange  Commission on January 7,
     1998, Form S-1/A-2  Registration  Statement (File No. 333-68759) filed with
     the  Securities  and Exchange  Commission on January 8, 1999,  Form S-1/A-1
     Registration  Statement (File No.  333-67947) filed with the Securities and
     Exchange  Commission  on  January  27,  1999,  Form  S-1/A-2   Registration
     Statement  (File No.  333-67947)  filed with the  Securities  and  Exchange
     Commission on January 27, 1999 and Form S-3  Registration  Statement  (File
     No.  333-83215)  filed with the Securities and Exchange  Commission on July
     20, 1999, Form S-3 Registration  Statement (File No.  333-34550) filed with
     the  Securities  and  Exchange  Commission  on April 11,  2000,  Form S-3/A
     Registration  Statement (File No.  333-33436) filed with the Securities and
     Exchange  Commission on June 9, 2000, Form S-8 POS  Registration  Statement
     (File No.  333-27673) filed with the Securities and Exchange  Commission on
     October  18,  2000,  and Form  S-8  (File  No.  333-48454)  filed  with the
     Securities and Exchange Commission on October 23, 2000.



                                                 ARTHUR ANDERSEN LLP



     Philadelphia, PA
         March 30, 2001