Exhibit 23.1 STEGMAN & COMPANY CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANT We consent to the incorporation by reference in this Registration Statement on Form S-3 pertaining to Celsion Corporation of our report dated Novmeber 6, 2001 with respect to the financial statements of Celsion Corporation included in its Annual Report on Form 10-K for the year ended September 30, 2001 filed with the Securities and Exchange Commission. /s/ Stegman & Company Baltimore, Maryland February 8, 2002