But if mucoid plaque exists, why has it never been photographed in situ? Contrast that with liver stones - there are many pictures of liver stones in situ in the gall-bladder/liver. Or candida - there is an abundance of pictures of candida on the colon wall.
Yet no one has ever photographed mucoid plaque inside the body.
The author seems to have 2 incompatible definitions of mucoid plaque.
1. that it consistes of white/translucent mucous
and 2. that it consists of black putrid fecal matter.
If you go to the web page linked below you will see the standard picture of the black putrid fecal matter (outside the body), and on the same page a picture of a colon wall which shows either white mucous (in situ) or candida. I can't tell which because the resolution of the image is bad.
Clearly these 2 definitions are incompatible.
If you say that both are mucoid plaque, then the evidence I would like to see is a picture of black mucoid plaque in situ in the colon.