https://www.theepochtimes.com/embalmers-have-been-finding-numerous-long-fibrous-clots-that-lack-post-mortem-characteristics_4696015.html?utm_source=ref_share&utm_campaign=navigator&rs=SHRNBSWT&
"Several embalmers across the country have been observing many large, and sometimes very long, “fibrous” and rubbery clots inside the corpses they treat, and are speaking out about their findings."
Details and explanation in the link