Hi Joanna,
Don't worry, you're not developing Crohn's disease. MC does
not segue into Crohn's, (nor UC, for that matter). The patients in that study had already been diagnosed with Crohn's disease. "Crypt disarray, patchy edema, and small lymphoid aggregates with neutrophils", are simply pathologic markers in biopsy samples, which distinguish Crohn's disease. These markers are not normally present in MC biopsies. Also, these markers are not visable to the naked eye. "Crypts" are tiny pits, or depressios, and neutrophils are simply a special type of white blood cell.
In medical jargon, "patchy edema" refers to scattered areas of swollen soft tissues, as a result of excess water accumulation. What you have on your elbows, is probably excema.
Normally, a canker sore shouldn't last more than about two weeks. Are you by any chance using a toothpaste or mouthwash that contains the foaming agent sodium lauryl sulfate? SLS can cause, or aggravate, canker sores.
Have you tried some of the home remedies, such as this one:
http://www.nlm.nih.gov/medlineplus/ency ... 002065.htm
If it persists, you might need to have your doctor check it out, and prescribe some sort of anti-viral treatment. Of course, the bad news is that things like that are normally treated with immune system suppresents, such as oral steroids.
Love,
Tex
P S The last quote you mentioned:
A limited number of biopsy fragments may be incorrectly interpreted as lymphocytic or collagenous colitis. The temporal relationships suggest that these morphologic patterns precede typical active CD.
simply refers to the presence of MC markers mixed in with the markers of Crohn's, in biopsy samples. A misdiagnosis should be relatively easy to avoid, since Crohn's is visable to the naked eye, during a colonscopy, whereas MC is not, and the microscopic markers of Crohn's are not present in a biopsy sample from an MC patient.