I've always thought that Rebecca's autopsy report was rather "minimalist" in the internal organ and external genital exam (given the conditions of her death, and the blood evidence in the shower and on the carpet).
And, what the AR doc recorded as to the interior exam conditions of Rebecca's uterus is potentially not entirely consistent with a woman with an IUD who is on her actual menstrual period (not merely spotting from the IUD.)
He noted (with great detail) the benign incidental intrauterine polypoid leiomyoma, but also recorded that the interior uterine mucosa is "smooth and red purple", with a small amount of blood in the endometrial cavity and vagina.
Again, this just doesn't sound like ENOUGH for the presumed dripping of blood in the shower and on the floor/carpet, IMO. (Even in a very thin woman who may have had significant "thigh gap".)
He recorded nothing at all about her cervix in the external clear spec exam except to note that there is blood in the vagina and around the cervix. (Enough for dripping on the floor? Doesn't seem so by his notes.) He didn't note if there was a retrieval string in place in the cervix from the IUD during that spec exam-- didn't even MENTION the IUD until his comments in the internal organ exam. He didn't mention if the cervix was parous or nulliparous, or had any signs of trauma itself, apart from the vagina. He did not mention anything at all about a cul de sac inspection. Etc. Etc.
It is true that the endometrial mucosa appearance can be changed from the presence of an IUD. However, if Rebecca was in the active shedding portion of her menstrual cycle, the interior exam of the uterine endometrium should have appeared much different, I would think.
So now, knowing the steak knife has vaginal blood on the handle circumferentially, I'm questioning the GYN autopsy report findings all over again.
How do you reconcile "a small amount" of blood in the vaginal vault, sufficient to be transferred to external areas of the body, as well as droplets on the floor, shower, etc, with a smooth, shiny, purple red endometrium, and a very small amount of blood in the uterine cavity??
Mr. Greer should call an OB GYN and discuss this, because I think it could lend confidence to his argument about sexual penetration with the steak knife handle. There may have been trauma to the cervix or cul de sac that the autopsy doc didn't see in the spec exam, traction on the IUD string from penetration, etc. (JMO, of course-- a real OB-GYN expert should weigh in on this.) Perhaps there are pictures preserved from the autopsy?
Maybe it's too late for that line of thinking, though, now that the trial is in progress? IDK.
A few links for thought.
http://www.autopsyfiles.org/reports/Other/zahau, rebecca_report.pdf
http://gynaeonline.com/uterine_cycle.htm