SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                 Amendment No. 1

                                   FORM 8-A/A
                                   ----------

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                     PURSUANT TO SECTION 12(b) OR (g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                               Celsion Corporation
--------------------------------------------------------------------------------
             (Exact Name of Registrant as Specified in Its Charter)

                  Delaware                            52-1256615
------------------------------------------   --------------------------------
          (State of Incorporation                  (IRS Employer
              or Organization)                   Identification no.)

10220-I Old Columbia Road, Columbia, Maryland                 21046-1705
---------------------------------------------     ------------------------------
   (Address of principal executive offices)                   (Zip Code)

If this form relates to the                 If this form relates to the
registration of a class of                  registration of a class of
securities  pursuant                        securities  pursuant
to Section 12(b) of the                     to Section 12(g) of the
Exchange  Act  and is                       Exchange  Act  and is
pursuant to General  Instruction            pursuant to General  Instruction
A.(c),  please check the                    A.(d),  please check the
following box. [ ]                          following box. [ ]


Securities Act registration statement
file number to which this form relates:
                                               --------------------------
                                                     (If applicable)

Securities to be registered pursuant to Section 12(b) of the Act:

         Title of Each Class                 Name of Each Exchange on Which
         to be Registered                     Each Class is to be Registered
-------------------------------------    --------------------------------------


-------------------------------------    --------------------------------------

Securities to be registered pursuant to Section 12(g) of the Act:

                         Preferred Share Purchase Rights
--------------------------------------------------------------------------------
                                (Title of Class)

                                       1






         Explanatory   Note:  This  Amendment  No.  1  amends  the  Registration
Statement  on Form 8-A of Celsion  Corporation  (the  "Company")  filed with the
Securities and Exchange Commission ("SEC") on September 19, 2002 (as so amended,
the  "Registration  Statement") in connection with the Company's  listing of its
Preferred  Share  Purchase  Rights on The American Stock  Exchange.  Capitalized
terms used  herein and not defined  have the  meanings  ascribed  thereto in the
Registration Statement as originally filed.

          This  Amendment  No. 1 is being filed to reflect the  amendment of the
first  sentence of the  definition of "Acquiring  Person" in Section 1(a) of the
Rights  Agreement,  and to include as an exhibit to the  Registration  Statement
Amendment No. 1 to Rights Agreement,  dated as of August 15, 2002,  effective as
of January 16, 2003 (the "First Amendment"). Except as amended hereby, there are
no other changes to the Registration Statement.

Item 1.  Description of Securities to be Registered

         Effective  as of January  16,  2003,  the  Company  effected  the First
Amendment. Pursuant to the First Amendment, the definition of "Acquiring Person"
appearing  in Section 1(a) of the Rights  Agreement  has been amended to provide
the following  additional  exclusion to the  definition  of "Acquiring  Person",
subsequent to item (iii) of the first  sentence of that Section,  to be numbered
as item (iv) of such sentence:

                  (iv) Boston Scientific Corporation ("BSC") shall not become an
                  "Acquiring  Person" as the result of the acquisition of shares
                  of Common  Stock by BSC solely (a)  pursuant  to that  certain
                  Transaction  Agreement,  dated as of January 20, 2003,  by and
                  between the Company and BSC (the "BSC Transaction  Agreement")
                  and (b) pursuant to a stock  dividend on,  subdivision  of, or
                  similar   proportionate   adjustment  in   (collectively,   an
                  "Adjustment"), the shares of Common Stock received pursuant to
                  the BSC Transaction Agreement,  provided, however, that if BSC
                  shall  become the  Beneficial  Owner of an aggregate of 15% or
                  more of the shares of Common Stock then  outstanding by reason
                  of  share   acquisitions   other  than  pursuant  to  the  BSC
                  Transaction  Agreement or an Adjustment in the shares received
                  pursuant  thereto  (provided  that such  aggregate may include
                  shares  of  Common   Stock   acquired   pursuant  to  the  BSC
                  Transaction  Agreement or any  Adjustment),  then BSC shall be
                  deemed to be an "Acquiring Person".


         The foregoing  description of the Rights  Agreement is qualified in its
entirety by  reference  to the full text of (a) the Rights  Agreement,  which is
attached as Exhibit 4.1 to the Registration  Statement, as originally filed, and
incorporated  herein  by  reference,  and  (b) the  First  Amendment  to  Rights
Agreement attached hereto as Exhibit 4.2 and incorporated herein by reference.

                                       2





Item 2.  Exhibits

Exhibit No.       Description

4.1 *             Rights Agreement dated as of August 15, 2002,  between Celsion
                  Corporation and American Stock Transfer & Trust Company, which
                  includes  as Exhibits  A, B and C,  respectively,  the Form of
                  Certificate   of   Designations   for  the   Series  C  Junior
                  Participating  Preferred Stock, the Form of Right Certificate,
                  and a Summary  of the Rights  (incorporated  by  reference  to
                  Celsion  Corporation's Current Report on Form 8-K filed August
                  21, 2002)

4.2 **            First  Amendment  to Rights  Agreement  dated as of August 15,
                  2002 between Celsion Corporation and American Stock Transfer &
                  Trust  Company,  as Rights Agent,  effective as of January 16,
                  2003.

* Previously filed by Celsion  Corporation on Form 8-A on September 19, 2002. **
Filed herewith.

                                       3







                                    SIGNATURE

         Pursuant to the  requirements of Section 12 of the Securities  Exchange
Act of 1934, the registrant  has duly caused this  registration  statement to be
signed on its behalf by the undersigned, thereto duly authorized.


        CELSION CORPORATION

           By:  /s/  Anthony P. Deasey
                ---------------------------------------------------------
                     Anthony P. Deasey
                     Executive Vice President--Finance and Administration
                     and Chief Financial Officer

                                       4


Date:    February 11, 2003








                                  EXHIBIT INDEX


Exhibit No.       Description

4.1 *             Rights Agreement dated as of August 15, 2002,  between Celsion
                  Corporation and American Stock Transfer & Trust Company, which
                  includes  as Exhibits  A, B and C,  respectively,  the Form of
                  Certificate   of   Designations   for  the   Series  C  Junior
                  Participating  Preferred Stock, the Form of Right Certificate,
                  and a Summary  of the Rights  (incorporated  by  reference  to
                  Celsion  Corporation's Current Report on Form 8-K filed August
                  21, 2002)

4.2 **            First  Amendment  to Rights  Agreement  dated as of August 15,
                  2002 between Celsion Corporation and American Stock Transfer &
                  Trust  Company,  as Rights Agent,  effective as of January 16,
                  2003.

* Previously filed by Celsion  Corporation on Form 8-A on September 19, 2002. **
Filed herewith.

                                       5