What could this mean?

Hi all, I contacted the hospital last week for my biopsy results (suspected endometrial cancer) and was told the results were just in but the consultant was off and to call back today once she's had a chance to look at them. I just called back and have been told the consultant is waiting for the hospital library to send something through before they make further appointments and give me the results. What could this mean? What is a hospital library and why does my consultant need something from the library before giving memy results if she already has my results?