EXHIBIT 5.1

                  [Letterhead of Anton Campion Macdonald Oyler]

                                                       March 28, 2001

PLC Systems Inc.
10 Forge Park
Franklin, MA
02038

Dear Sirs:

RE:      REGISTRATION STATEMENT ON FORM S-8

We have acted as Yukon Territory counsel on behalf of PLC Systems Inc., a
corporation organized under the laws of the Yukon Territory, Canada (the
"Company"), in connection with the registration of 400,000 shares of Common
Stock of the Company (the "Common Stock") issuable under the Company's 2000
Non-qualified Performance and Retention Equity Plan (the "Plan"). In
connection therewith, we have examined, among other things, the Registration
Statement on Form S-8 (the "Registration Statement") proposed to be filed by
the Company with the Securities and Exchange Commission on or about March 28,
2001. We have also examined the proceedings and other actions taken by the
Company in connection with the authorization of the shares of Common Stock
issuable under the Plan and such other matters as we deemed necessary for
purposes of rendering this opinion.

Based upon the foregoing, and in reliance thereon, we are of the opinion, as
of the date hereof, that the shares of Common Stock issuable under the Plan,
when issued, delivered and paid for in accordance with the Plan and in the
manner described in the Registration Statement, will be validly issued, fully
paid and non-assessable.

In rendering this opinion we express no opinion as to the laws of any
jurisdiction other than the laws of the Yukon Territory.

We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement. In giving this consent, we do not admit that we are
within the category of persons whose consent is required under Section 7 of
the Securities Act of 1933, as amended, or the General Rules and Regulations
of the Securities and Exchange Commission.

         Yours truly,

         ANTON CAMPION MACDONALD OYLER


         /s/ Gareth C. Howells

         Gareth C. Howells