Start reading on page 10 of the PDF not the actual printed page,where is says chronic interstitial enteritis,
probably an early description of crohns.
The reason I post this is that the doc notes that Johne's was a new disease in 1895 in cattle,
and this looks pretty much like it.
So it has been since then and they still cant decide one way or the other if MAP is the cause.
Old Mike
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2345847/pdf/brmedj07541-0011.pdf