Image here is from an autopsy performed on a man who had suffered from bacterial meningitis. This condition is an infection of the layers of protective tissue that surround the brain and spinal cord. It can be caused by a number of issues or for seemingly no reason. Children under two years of age tend to be the highest at risk for infection while adults are at a risk from factors ranging from everything to compromised immune system, alcohol abuse, consistent nose and ear infections and pneumococcal diseases such as pneumonia.
Note the yellowish-green color of the brain being exposed as the layer of tissue is peeled away. The brain of this man was surrounded by pus. Excellent image. Ive always had a fascination with autopsies in general and I spent some time drinking in this picture.
Mad props to RGM member, @eyez2die4 for the contribution.