So.....What the Doc is waiting on is an "Immuno" stain from histology to the pathologists. Specifically its a type of Immunoperoxidase which colors the cells to illuminate cell types. When they were in surgery they did a "Sentinel Node Biopsy" on which they performed a "frozen section." This fast freezes a tissue sample which is cut on a cryostatically enclosed microtome and then fast processed to get a timely read during surgery to let the surgeons know whether the margins or in this case the lymph nodes are clear. If they were as you said then to be absolutely sure they do the Immuno. In Karen's lab the slides would be path ready today but other labs are slower and in either case you have to wait on the pathologist to read the slides.
Now I know you don't really give two shits about any of that but after 25 years married to a Histologist you learn a lot of basically useless crap. Occasionally though it can be a show stopper.........One time Karen and I were having a party and most everyone there was a teacher at the school where I taught or their spouse.
Naturally most of the talk was of things happening at school and someone had brought up something odd that had happened. Karen, forgetting the audience she had, injected the following into the conversation: "We had a 4 pound uterus today." The silence was deafening followed by gales of laughter and a one-upsmanship game of uterus jokes. I always found that high school teachers are about as bawdy a group as you can find when they're away from the freakin' kids.
Well that's a lot of time wasting post but what the hell.............