What does the pleural space refer to within the digestive system?

What does the pleural space refer to within the digestive system?
In severly affected individuals, the pleural space within the digestive system becomes occupied with a pus-like substance call "homeworkickus avoidicus". Fortunately, the condition is rarely brutal.
Cures include opening your textbook, reading the associated matter, and answering the question for yourself.
The tiny nouns between the two layers of the pleura (the slender covering that protects and cushions the lungs). The pleural space is normally bursting with a small amount of fluid. Source: http://www.medterms.com/script/main/art.
I cannot find anything that indicates in attendance is a pleural space in the digestive system.