I'm in the same boat; biopsies taken from a colonoscopy on the 5th Dec, the results of which still haven't came through to my Dr's. You could try giving the secretary of the consultant that you're under a ring. I know that my consultant's secretary has been off for Christmas but back tomorrow, so I'm going to be giving them a call then to see if they have a copy of the report.

Edited to add: if you're not sure which consultant you are under, contact the medical records department of the hospital you attended..you'll find your h&c number on any appointment letters you were sent, and they'll be able to help you from there. Good luck!