Carcinoma (Dir Marian Dora) -- Dorian is afflicted with colon cancer. Instead of getting treatment he allows himself to deteriorate. He develops an ulcerated sore on his belly and derives satisfaction from poking at it.

Contains scenes of pooping, vomiting, and self-harm.

The last 20 minutes or so depicts Dorian's agonizing death. This is not as disgusting as the director's film Debris Documentar, but it does have it's share of unpleasant moments.

The most disturbing scene involves butchering a dead chicken interspersed with self-mutilation.

https://www.youtube.com/watch?v=mKWpnaNsw58&t=4s