Other mistake: It makes no sense for Ryuji's head to be surrounded by so much blood in the autopsy room. We're shown the table is built so the blood drains down, so why is there such a massive pattern of blood around his head, on the sides and railings, etc.? It almost looks like blood was spraying everywhere... that doesn't happen in autopsies.
Other mistake: When Ando begins the autopsy, he glances up and says, "Shall we begin?" to someone. However, in the next shot, the other doctor is to the side of him and not in the direction he was looking.
